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  • 101.
    Brunnström, Kjell
    et al.
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Allison, R. S.
    York University, Canada.
    Chandler, D. M.
    Shizuoka University, Japan.
    Colett, H.
    Intel Corp, USA.
    Corriveau, P.
    Intel Corp, USA.
    Daly, S.
    Dolby Laboratories, USA.
    Goel, J.
    Qualcomm, Canada.
    Knopf, J.
    Intel Corp, USA.
    Wilcox, L. M.
    York University, Canada.
    Yaacob, Y.
    Shizuoka University, Japan.
    Yang, S. -N
    Pacific University, USA.
    Zhang, Y.
    Shizuoka University, Japan.
    Industry and business perspectives on the distinctions between visually lossless and lossy video quality: Mobile and large format displays2017Ingår i: IS and T International Symposium on Electronic Imaging Science and Technology, 2017, s. 118-133Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper will explore the mobile and business perspectives of visually lossless image quality, as well as review recent scientific advances. It is the outcome from the Special Session on Visually Lossless Video Quality for Modern Devices: Research and Industry Perspectives organized at the Human Vision and Electronic Imaging 2017 by IS&T at San Francisco Airport, Burlingame, California, USA, Jan 29 - Feb 2, 2017. It summarizes four presentations and a panel discussion.

  • 102.
    Brunnström, Kjell
    et al.
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Barkowsky, Marcus
    Balancing type I errors and statistical power in video quality assessment2017Ingår i: IS and T International Symposium on Electronic Imaging Science and Technology, 2017, s. 91-96Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper analyzes how an experimenter can balance errors in subjective video quality tests between the statistical power of finding an effect if it is there and not claiming that an effect is there if the effect it is not there i.e. balancing Type I and Type II errors. The risk of committing Type I errors increases with the number of comparisons that are performed in statistical tests. We will show that when controlling for this and at the same time keeping the power of the experiment at a reasonably high level, it will require more test subjects than are normally used and recommended by international standardization bodies like the ITU. Examples will also be given for the influence of Type I error on the statistical significance of comparing objective metrics by correlation.

  • 103.
    Brunnström, Kjell
    et al.
    RISE., Swedish ICT, Acreo.
    Hands, D
    Speranza, F
    Webster, A
    VQEG Validation ITU Standardisation of Objective Perceptual Video Quality Metrics2009Ingår i: IEEE Signal Processing Magazine, Vol. 26, nr 3, s. 96-Artikel i tidskrift (Refereegranskat)
  • 104.
    Brunnström, Kjell
    et al.
    RISE., Swedish ICT, Acreo.
    Schenkman, B
    Comparison of the predictions of a spatiotemporal model with the detection of distortion in small moving images2002Ingår i: Optical Engineering, Vol. 41, s. 711-22Artikel i tidskrift (Refereegranskat)
  • 105.
    Brunnström, Kjell
    et al.
    RISE., Swedish ICT, Acreo.
    Schenkman, B
    Jacobson, B
    Object Detection in Cluttered IR Images2003Ingår i: Optical Engineering, Vol. 42, s. 388-99Artikel i tidskrift (Refereegranskat)
  • 106.
    Brunnström, Kjell
    et al.
    RISE., Swedish ICT, Acreo.
    Stålenbring, D
    Pettersson, M
    Gustafsson, J
    The impact of transmission errors on progressive 720 lines HDTV coded with H.2642010Ingår i: Proceedings Volume 7527, Human Vision and Electronic Imaging XV; 75271J (2010), 2010, Vol. 7527Konferensbidrag (Refereegranskat)
  • 107.
    Camara, A.
    et al.
    RISE - Research Institutes of Sweden, ICT, Acreo. Pontifícia Universidade Católica do Rio de Janeiro,Brazil.
    Tarasenko, O.
    RISE., Swedish ICT, Acreo.
    Margulis, W.
    RISE., Swedish ICT, Acreo. KTH Royal Institute of Technology, Sweden.
    Study of thermally poled fibers with a two-dimensional model2014Ingår i: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 22, s. 17700-15Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A two-dimensional (2D) numerical model is implemented to describe the movement of ions under thermal poling for the specific case of optical fibers. Three types of cations are considered (representing Na+, Li + and H3O+) of different mobility values. A cross-sectional map of the carrier concentration is obtained as a function of time. The role of the various cations is investigated. The assumptions of the model are validated by comparing the predictions to experimental data of the time evolution of the nonlinearity induced. A variational analysis of poling parameters including temperature, poling voltage, sign of the bias potential and initial ionic concentrations is performed for a particular fiber geometry. The analysis allows identifying the impact of these parameters on the induced secondorder nonlinearity in poled fibers.

  • 108.
    Camara, Alexandre R.
    et al.
    Rio de Janeiro State University, Brazil; Pontifical Catholic University of Rio de Janeiro, Brazil.
    Pereira, Joao M. B.
    Pontifical Catholic University of Rio de Janeiro, Brazil.
    Tarasenko, Oleksandr
    RISE., Swedish ICT, Acreo, Fiber Optics.
    Margulis, Walter
    RISE., Swedish ICT, Acreo, Fiber Optics. KTH Royal Institute of Technology, Sweden.
    Carvalho, Isabel C. S.
    Pontifical Catholic University of Rio de Janeiro, Brazil.
    Optical creation and erasure of the linear electrooptical effect in silica fiber2015Ingår i: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 23, nr 14, s. 18060-18069Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We study the creation and erasure of the linear electrooptical effect in silicate fibers by optical poling. Carriers are released by exposure to green light and displaced with simultaneous application of an internal dc field. The second order nonlinear coefficient induced grows with poling bias. The field recorded (~108 V/m) is comparable to that obtained through classical thermal poling of fibers. In the regime studied here, the second-order nonlinearity induced (~0.06 pm/V) is limited by the field applied during poling (1.2 × 108 V/m). Optical erasure with high-power green light alone is very efficient. The dynamics of the writing and erasing process is discussed, and the two dimensional (2D) field distribution across the fiber is simulated.

  • 109. Candiani, A
    et al.
    Konstantaki, M
    Margulis, W
    RISE., Swedish ICT, Acreo.
     Pissadakis, S
    A spectrally tunable microstructured optical fibre Bragg grating utilizing an infiltrated ferrofluid2010Ingår i: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 18, nr 24, s. 24654-Artikel i tidskrift (Refereegranskat)
  • 110. Candiani, A
    et al.
    Konstantaki, M
    Margulis, W
    RISE., Swedish ICT, Acreo.
    Pissadakis, S
    Optofluidic magnetometer developed in a microstructured optical fiber2012Ingår i: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 37, nr 21, s. 67-69Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A directional, in-fiber optofluidic magnetometer based on a microstructured optical fiber (MOF) Bragg-grating infiltrated with a ferrofluidic defect is presented. Upon application of a magnetic field, the ferrofluidic defect moves along the length of the MOF Bragg grating, modifying its reflection spectrum. The magnetometer is capable of measuring magnetic fields from 317 to 2500 G. The operational principle of such in-fiber magnetic field probe allows the elaboration of directional measurements of the magnetic field flux._x000D_

  • 111.
    Candiani, A
    et al.
    RISE., Swedish ICT, Acreo, Fiber Optics.
    Margulis, W
    VIKTORIA.
    Konstantaki, M
    RISE., Swedish ICT, Acreo, Fiber Optics.
    Pissadakis, S
    RISE., Swedish ICT, Acreo, Fiber Optics.
    Ferrofluid-infiltrated optical fibers for shear-sensing smart pads2012Ingår i: SPIE NewsroomArtikel i tidskrift (Övrigt vetenskapligt)
  • 112. Candiani, A
    et al.
    Margulis, W
    RISE., Swedish ICT, Acreo.
    Sterner, C
    RISE., Swedish ICT, Acreo.
    Konstantaki, M
    Pissadakis, S
    Phase-shifted Bragg microstuctured optical fibre grating utilizing infiltrated ferrofluidics2011Ingår i: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 36, nr 13, s. 2548-50Artikel i tidskrift (Refereegranskat)
  • 113. Canning, J
    et al.
    Lau, A
    Naqshbandi, M
    Petermann, I
    RISE., Swedish ICT, Acreo.
    Crossley, M-J
    Measurement of Fluorescence in a Rhodamine-123 Doped Self-Assembled 'Giant' Mesostructured Silica Sphere using a Smartphone as Optical Hardware2011Ingår i: Sensors, Vol. 11, nr 7, s. 7055-62Artikel i tidskrift (Refereegranskat)
  • 114. Capmany, J
    et al.
    Ortega, B
    Martinez, A
    Pastor, D
    Popov, M
    RISE., Swedish ICT, Acreo.
    Fonjallaz, P-Y
    Multi-wavelength Single Sidebmodulation for WDM-Radio over Fibre systems using a Fibre Grating Array Tandem device2005Ingår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 17, nr 2, s. 471-73Artikel i tidskrift (Refereegranskat)
  • 115.
    Carlsson, Raul
    et al.
    RISE - Research Institutes of Sweden, Material och produktion, SWECAST.
    Elmquist, Lennart
    RISE - Research Institutes of Sweden, Material och produktion, SWECAST.
    Johansson, Christian
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Cast metal with intelligence - from passive to intelligent cast components2017Ingår i: 8th Conference on Smart Structures and Materials, SMART 2017 and 6th International Conference on Smart Materials and Nanotechnology in Engineering, SMN 2017, 2017, s. 550-560Konferensbidrag (Refereegranskat)
    Abstract [en]

    The paper describes an innovation project aiming to embed sensors into cast metal during the casting process. Important measurands are e.g. elongation, shear, temperature and vibration. In practice this means to turn metal components into also being digital components. This will respond to some of metal industrýs challenges; resource efficient design, increased value added for the casting sector, and general access to different possibilities of digitalization. Technical challenges lie in choices of sensor material to integrate during the casting process that maintains its sensor functionality after casting processing without degrading the mechanical strength of the metal component. Other challenges relate to signal interaction and interference between sensor and metal. To handle the technical challenges the innovation project gathers competence about metal casting and sensor technology. One goal of this innovation project is to develop an innovation platform that elevates the material based casting industry into a wholly or partially value and service based industry. Integration of sensors into cast components makes sensing functionality a natural property of metal, which in turn may turn metal into key components for the industrial digitalization.

  • 116.
    Carlsson, Raul
    et al.
    RISE - Research Institutes of Sweden, Material och produktion, SWECAST.
    Elmquist, Lennart
    RISE - Research Institutes of Sweden, Material och produktion, SWECAST.
    Thore, Andreas
    RISE - Research Institutes of Sweden, Material och produktion, SWECAST.
    Ahrentorp, Fredrik
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Johansson, Christer
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Israelsson, Björn
    SKF Mekan AB, Sweden.
    Connecting sensors inside smart castings2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    The paper presents ongoing research on smart metal castings, meaning the technologicalinnovation of elevating cast metal components into metal components with integratedsensor functionality. Since the innovation targets aim straight at low cost industrial serialproduction, specific high cost and high-end solutions like inclusion of advancedelectronic equipment and after mounted sensors are not part of this innovationdevelopment. Integrating signal carriers inside metal castings to achieve metal castingswith sensor functionality requires robust solutions for connecting the sensor signal to thesensor interrogator and interpreter. The actual transmission of the signal may be donewirelessly or by wire. However, for several reasons there is a challenge with establishingan isolated and distinct connection between the sensor contact, and the contact at theexternal connection, regardless of whether it is to an antenna for wireless transmission orto a wire. This paper presents metallurgical challenges associated with choices ofmaterials, and combinations of metallurgical challenges and production process relatedchallenges, including the high melting temperatures. Aims are to find the rightcombinations of metal alloys, production simplicity, signal stability and robustness. Thepaper will present some of the tests made in the project so far. The project is run in aconsortium of the two Sweden-based industrial companies Husqvarna and SKF, and thetwo Swedish research institutes Swerea SWECAST and RISE Acreo.

  • 117.
    Carvalho, ICS
    et al.
    RISE., Swedish ICT, Acreo.
    Lesche, B
    RISE., Swedish ICT, Acreo.
    Margulis, Walter
    RISE., Swedish ICT, Acreo.
    Second order nonlinearities in optical fibers2002Ingår i: Polymer Optical Fibers / [ed] Nalwa, H., Los Angeles, CA, USA: American Scientific Publishers, 2002Kapitel i bok, del av antologi (Övrigt vetenskapligt)
  • 118.
    Carvalho, Isabel C. S.
    et al.
    Pontifical Catholic University of Rio de Janeiro, Brazil.
    Tarasenko, Oleksander
    RISE., Swedish ICT, Acreo.
    Camara, Alexandre R.
    Rio de Janeiro State University, Brazil.
    Pereira, Joäo M. B.
    Pontifical Catholic University of Rio de Janeiro, Brazil.
    Margulis, Walter
    RISE., Swedish ICT, Acreo. KTH Royal Institute of Technology, Sweden.
    Pockels fibers by optical poling2015Ingår i: Workshop on Specialty Optical Fibers and their Applications 2015, 2015, artikel-id WT4A.22Konferensbidrag (Refereegranskat)
    Abstract [en]

    Silica fibers with internal electrodes biased with HV are poled when simultaneously excited by green light. The x(2) induced measured through the Pockels effect at 1.55 μm reaches ~0.11 pm/V. Poling and erasure are studied.

  • 119. Chacinski, M
    et al.
    Westergren, U
    Thylen,  L
    Stoltz, B
    Rosenzweig, J
    Driad, R
    Makon, R E
    Li, J
    RISE., Swedish ICT, Acreo.
    Steffan, A
    ETDM Transmitter Module for 100-Gb/s Ethernet2010Ingår i: IEEE Photonic Technology Letters, Vol. 22, nr 2, s. 70-72Artikel i tidskrift (Refereegranskat)
  • 120.
    Chakkarapani, Prabu
    et al.
    Anna University, India.
    Subbiah, Latha
    Anna University, India.
    Palanisamy, Selvamani
    Anna University, India.
    Bibiana, Arputha
    Anna University, India.
    Ahrentorp, Fredrik
    RISE., Swedish ICT, Acreo.
    Jonasson, Christian
    RISE., Swedish ICT, Acreo.
    Johansson, Christer
    RISE., Swedish ICT, Acreo.
    Encapsulation of methotrexate loaded magnetic microcapsules for magnetic drug targeting and controlled drug release2015Ingår i: Journal of Magnetism and Magnetic Materials, ISSN 0304-8853, E-ISSN 1873-4766, Vol. 380, s. 285-294Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We report on the development and evaluation of methotrexate magnetic microcapsules (MMC) for targeted rheumatoid arthritis therapy. Methotrexate was loaded into CaCO3-PSS (poly (sodium 4-styrenesulfonate)) doped microparticles that were coated successively with poly (allylamine hydrochloride) and poly (sodium 4-styrenesulfonate) by layer-by-layer technique. Ferrofluid was incorporated between the polyelectrolyte layers. CaCO3-PSS core was etched by incubation with EDTA yielding spherical MMC. The MMC were evaluated for various physicochemical, pharmaceutical parameters and magnetic properties. Surface morphology, crystallinity, particle size, zeta potential, encapsulation efficiency, loading capacity, drug release pattern, release kinetics and AC susceptibility studies revealed spherical particles of ~3 µm size were obtained with a net zeta potential of +24.5 mV, 56% encapsulation and 18.6% drug loading capacity, 96% of cumulative drug release obeyed Hixson-Crowell model release kinetics. Drug excipient interaction, surface area, thermal and storage stability studies for the prepared MMC was also evaluated. The developed MMC offer a promising mode of targeted and sustained release drug delivery for rheumatoid arthritis therapy.

  • 121.
    Chamania, Mohit
    et al.
    ADVA Optical Networking, Germany.
    Szyrkowiec, Thomas
    ADVA Optical Networking, Germany.
    Santuari, Michele
    CREATE-NET Research Center, Italy.
    Siracusa, Dominico
    CREATE-NET Research Center, Italy.
    Autenrieth, Achim
    ADVA Optical Networking, Germany.
    Lopez, Victor
    Telefónica I+D, Spain.
    Sköldström, Pontus
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Junique, Stephane
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Intent-based in-flight service encryption in multi-layer transport networks2017Ingår i: 2017 Optical Fiber Communications Conference and Exhibition, OFC 2017 - Proceedings, 2017Konferensbidrag (Refereegranskat)
    Abstract [en]

    We demonstrate multi-layer encrypted service provisioning via the ACINO orchestrator. ACINO combines a novel intent interface with an ONOS-based SDN orchestrator to facilitate encrypted services at IP, Ethernet and optical network layers.

  • 122. Chen, J
    et al.
    Wosinska, L
    Chughtai, M-N
    Forzati, M
    RISE., Swedish ICT, Acreo.
    Scalable Passive Optical Network Architecture for Reliable Service Delivery2011Ingår i: Journal of Optical Communications Networks, Vol. 3, nr 9, s. 667-Artikel i tidskrift (Refereegranskat)
  • 123. Chen, S
    et al.
    Jokilaakso, N
    Björk, P
    RISE., Swedish ICT, Acreo.
    Eriksson Karlström, A
    Zhang, S-L
    A two-terminal silicon nanoribbon field-effect pH sensor2010Ingår i: Applied Physics Letter, Vol. 97, nr 26, s. 264102-4Artikel i tidskrift (Refereegranskat)
  • 124.
    Chen, Shangzhi
    et al.
    Linköping University, Sweden.
    Kühne, Philipp
    Linköping University, Sweden.
    Stanishev, Vallery
    Linköping University, Sweden.
    Knight, Sean
    University of Nebraska-Lincoln, US.
    Brooke, Robert
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Petsagkourakis, Ioannis
    Linköping University, Sweden.
    Crispin, Xavier
    Linköping University, Sweden.
    Schubert, Mathias
    Linköping University, Sweden; University of Nebraska-Lincoln, US; Leibniz-Institut für Polymerforschung Dresden e.V., Germany.
    Darakchieva, Vanya
    Linköping University, Sweden.
    Jonsson, Magnus
    Linköping University, Sweden.
    On the anomalous optical conductivity dispersion of electrically conducting polymers: Ultra-wide spectral range ellipsometry combined with a Drude-Lorentz model2019Ingår i: Journal of Materials Chemistry C, ISSN 2050-7526, E-ISSN 2050-7534, Vol. 7, nr 15, s. 4350-4362Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Electrically conducting polymers (ECPs) are becoming increasingly important in areas such as optoelectronics, biomedical devices, and energy systems. Still, their detailed charge transport properties produce an anomalous optical conductivity dispersion that is not yet fully understood in terms of physical model equations for the broad range optical response. Several modifications to the classical Drude model have been proposed to account for a strong non-Drude behavior from terahertz (THz) to infrared (IR) ranges, typically by implementing negative amplitude oscillator functions to the model dielectric function that effectively reduce the conductivity in those ranges. Here we present an alternative description that modifies the Drude model via addition of positive-amplitude Lorentz oscillator functions. We evaluate this so-called Drude-Lorentz (DL) model based on the first ultra-wide spectral range ellipsometry study of ECPs, spanning over four orders of magnitude: from 0.41 meV in the THz range to 5.90 eV in the ultraviolet range, using thin films of poly(3,4-ethylenedioxythiophene):tosylate (PEDOT:Tos) as a model system. The model could accurately fit the experimental data in the whole ultrawide spectral range and provide the complex anisotropic optical conductivity of the material. Examining the resonance frequencies and widths of the Lorentz oscillators reveals that both spectrally narrow vibrational resonances and broader resonances due to localization processes contribute significantly to the deviation from the Drude optical conductivity dispersion. As verified by independent electrical measurements, the DL model accurately determines the electrical properties of the thin film, including DC conductivity, charge density, and (anisotropic) mobility. The ellipsometric method combined with the DL model may thereby become an effective and reliable tool in determining both optical and electrical properties of ECPs, indicating its future potential as a contact-free alternative to traditional electrical characterization.

  • 125.
    Chen, XÍ
    et al.
    Huazhong University of Science and Technology, China.
    Lin, Rui
    Huazhong University of Science and Technology, China.
    Cui, Jingxian
    Huazhong University of Science and Technology, China.
    Gan, Li
    Huazhong University of Science and Technology, China.
    Pang, Xiaodan
    KTH Royal Institute of Technology, Sweden.
    Ozolins, Oskars
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Udalcovs, Aleksejs
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Jiang, Tao
    Huazhong University of Science and Technology, China.
    Schatz, Richard
    KTH Royal Institute of Technology, Sweden.
    Popov, Sergei
    KTH Royal Institute of Technology, Sweden.
    Chena, Jiajia
    KTH Royal Institute of Technology, Sweden.
    Tang, Ming
    Huazhong University of Science and Technology, China.
    Fu, Songnian
    Huazhong University of Science and Technology, China.
    Liu, Deming
    Huazhong University of Science and Technology, China.
    TDHQ Enabling Fine-granularity Adaptive Loading for SSB-DMT Systems2018Ingår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 30, nr 19, s. 1687-1690Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In this letter, we introduce time domain hybrid quadrature amplitude modulation (TDHQ) for the single sideband (SSB) discrete multi-tone (DMT) systems. Experimental results reveal that with a single precoding set and the proposed adaptive loading algorithm, the TDHQ scheme can achieve finer granularity and therefore smoother continuous growth of data rate than that with the conventional quadrature amplitude modulation (QAM). Besides, thanks to the frame construction and the tailored mapping rule, the scheme with TDHQ has an obviously better peak to average power ratio (PAPR).

  • 126.
    Cherian, Dennis
    et al.
    Linköping University, Sweden.
    Armgarth, Astrid
    Linköping University, Sweden.
    Beni, Valerio
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Linderhed, Ulrika
    RISE - Research Institutes of Sweden, ICT, Acreo. Linköping University, Sweden.
    Tybrandt, Klas
    Linköping University, Sweden.
    Nilsson, David
    Simon, Daniel T
    Linköping University, Sweden.
    Berggren, Magnus
    Linköping University, Sweden.
    Large-area printed organic electronic ion pumps2019Ingår i: Flexible and Printed Electronics, Vol. 4, nr 2Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    Biological systems use a large variety of ions and molecules of different sizes for signaling. Precise electronic regulation of biological systems therefore requires an interface which translates the electronic signals into chemically specific biological signals. One technology for this purpose that has been developed during the last decade is the organic electronic ion pump (OEIP). To date, OEIPs have been fabricated by micropatterning and labor-intensive manual techniques, hindering the potential application areas of this promising technology. Here we show, for the first time, fully screen-printed OEIPs. We demonstrate a large-area printed design with manufacturing yield >90%. Screen-printed cation- and anion-exchange membranes are both demonstrated with promising ion selectivity and performance, with transport verified for both small ions (Na+, K+, Cl) and biologically-relevant molecules (the cationic neurotransmitter acetylcholine, and the anionic anti-inflammatory salicylic acid). These advances open the 'iontronics' toolbox to the world of printed electronics, paving the way for a broader arena for applications.

  • 127. Chughtai, MN
    et al.
    Forzati, M
    RISE., Swedish ICT, Acreo.
    Mårtensson, J
    Rafique, D
    Influence of polarization state, baud rate PMD on non-linear impairments in WDM systems with mixed PM (D)QPSK OOK channels2012Ingår i: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 20, nr 7, s. 8155-60Artikel i tidskrift (Refereegranskat)
  • 128.
    Claesson, A
    et al.
    RISE., Swedish ICT, Acreo.
    Holm, J
    Koch, R
    Olson, M
    Olsson, A
    Vieider, C
    Ahlfeldt, H
    Laurell, F
    Diode-pumped miniature lasers using microstructured silicon carriers2000Ingår i: Electronic Letters, Vol. 36, nr 5, s. 433-Artikel i tidskrift (Refereegranskat)
  • 129. Costa e Silva, M B
    et al.
    Margulis, W
    RISE., Swedish ICT, Acreo.
    von der Weid, J P
    Optimising Er-doped L-bamplifiers with coherent reflectometry2004Ingår i: Microwave Optical Technology Letters, Vol. 40, nr 3, s. 213-16Artikel i tidskrift (Refereegranskat)
  • 130.
    Cristofori, Valentina
    et al.
    DTU Technical University of Denmark, Denmark.
    Da Ros, Francesco
    DTU Technical University of Denmark, Denmark.
    Ozolins, Oskars
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Chaibi, Mohamed Essghair
    University of Rennes 1, France.
    Bramerie, Laurent
    University of Rennes 1, France.
    Ding, Yunhong
    DTU Technical University of Denmark, Denmark.
    Pang, Xiaodan
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Shen, Alexandre
    III-V Lab, France.
    Gallet, Antonin
    III-V Lab, France.
    Duan, Guanghua
    III-V Lab, France.
    Hassan, Karim
    CEA, France.
    Olivier, Segolene Gol Ne
    CEA, France.
    Popov, Sergei Yu
    KTH Royal Institute of Technology, Sweden.
    Jacobsen, Gunnar
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Oxenlöwe, Leif Katsuo
    DTU Technical University of Denmark, Denmark.
    Peucheret, Christophe
    University of Rennes 1, France.
    25-Gb/s transmission over 2.5-km SSMF by silicon MRR enhanced 1.55-μm III-V/SOI DML2017Ingår i: 30th Annual Conference of the IEEE Photonics Society, IPC 2017, Institute of Electrical and Electronics Engineers Inc. , 2017, s. 357-360Konferensbidrag (Refereegranskat)
    Abstract [en]

    The use of a micro-ring resonator (MRR) to enhance the modulation extinction ratio and dispersion tolerance of a directly modulated laser (DML) is experimentally investigated with a bit rate of 25 Gb/s as proposed for the next generation data center communications. The investigated system combines a 11-GHz 1.55-m directly modulated hybrid III-V/SOI DFB laser realized by bonding III-V materials (InGaAlAs) on a silicon-on-insulator (SOI) wafer and a silicon MRR also fabricated on SOI. Such a transmitter enables error-free transmission (BER< 10 -9 )at 25 Gb/s data rate over 2.5-km SSMF without dispersion compensation nor forward error correction (FEC). As both laser and MRR are fabricated on the SOI platform, they could be combined into a single device with enhanced performance, thus providing a cost-effective transmitter for short reach applications.

  • 131.
    Cristofori, Valentina
    et al.
    DTU Technical University of Denmark, Denmark.
    Da Ros, Francescos
    DTU Technical University of Denmark, Denmark.
    Ozolins, Oskars
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Chaibi, Mohamed E.
    FOTON Laboratory, France.
    Bramerie, Laurent
    FOTON Laboratory, France.
    Ding, Yunhong
    DTU Technical University of Denmark, Denmark.
    Pang, Xiadon
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Shen, Alexandre
    Thales, France.
    Gallet, Antonin
    Thales, France.
    Duan, Guang-Hua
    Thales, France.
    Hassan, Karem
    III-V Lab, France.
    Olivier, Segolene
    III-V Lab, France.
    Popov, Sergei
    KTH Royal Institute of Technology, Sweden.
    Jacobsen, Gunnar
    Oxenløwe, Leif K.
    DTU Technical University of Denmark, Denmark.
    Peucheret, Christophe
    FOTON Laboratory, France.
    25-Gb/s transmission over 2.5-km SSMF by silicon MRR enhanced 1.55-μm III-V/SOI DML2017Ingår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 29, nr 12, s. 960-963, artikel-id 7917280Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The use of a micro-ring resonator (MRR) to enhance the modulation extinction ratio and dispersion tolerance of a directly modulated laser is experimentally investigated with a bit rate of 25 Gb/s as proposed for the next generation data center communications. The investigated system combines a 11-GHz 1.55-μm directly modulated hybrid III-V/SOI DFB laser realized by bonding III-V materials (InGaAlAs) on a silicon-on-insulator (SOI) wafer and a silicon MRR also fabricated on SOI. Such a transmitter enables error-free transmission (BER < 10-9) at 25 Gb/s data rate over 2.5-km standard single mode fiber without dispersion compensation nor forward error correction. As both laser and MRR are fabricated on the SOI platform, they could be combined into a single device with enhanced performance, thus providing a cost-effective transmitter for short reach applications.

  • 132.
    Czegledi, Christian B.
    et al.
    Chalmers University of Technology, Sweden.
    Karlsson, Magnus
    Chalmers University of Technology, Sweden.
    Johannisson, Pontus
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Agrell, Erik
    Chalmers University of Technology, Sweden.
    Temporal stochastic channel model for absolute polarization state and polarization-mode dispersion2017Ingår i: 2017 Optical Fiber Communications Conference and Exhibition, OFC 2017 - Proceedings, 2017Konferensbidrag (Refereegranskat)
    Abstract [en]

    We propose and validate a discrete-time channel model for the temporal drift of the absolute polarization state and polarization-mode dispersion for coherent fiber optic systems. The model can be used in simulations to test and develop DSP for coherent receivers.

  • 133.
    Da Ros, Francesco
    et al.
    DTU Technical University of Denmark, Denmark.
    Cristofori, Valentina
    DTU Technical University of Denmark, Denmark.
    Ozolins, Oskars
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Chaibi, Mohamed E.
    University of Rennes, France.
    Pang, Xiodan
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Jacobsen, Gunnar
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Popov, Sergei
    KTH Royal Institute of Technology, Sweden.
    Galili, Michael
    DTU Technical University of Denmark, Denmark.
    Oxenløwe, Leif K.
    DTU Technical University of Denmark, Denmark.
    Peucheret, Christophe
    University of Rennes, France.
    4-PAM dispersion-uncompensated transmission with micro-ring resonator enhanced 1.55-μm DML2017Ingår i: Optics InfoBase Conference Papers, 2017, artikel-id STu1M.5.Konferensbidrag (Refereegranskat)
    Abstract [en]

    Real-time transmission of 14-GBd 4-PAM signal is demonstrated by combining a commercial 1.55-μm DML with a silicon MRR. BER below the HD-FEC threshold is measured after 26-km SSMF transmission without offline digital signal processing.

  • 134.
    De Moor, Katrien
    et al.
    NTNU Norwegian University of Science and Technology, Norway; Ghent University, Belgium.
    Andrén, Börje
    RISE., Swedish ICT, Acreo.
    Guo, Yi
    RISE., Swedish ICT, Acreo. KTH Royal Institute of Technology, Sweden.
    Brunnström, Kjell
    Mid Sweden University, Sweden.
    Wang, Kun
    RISE., Swedish ICT, Acreo. KTH Royal Institute of Technology, Sweden.
    Drott, Anton
    Volvo Cars AB, Sweden.
    Hermann, David
    Volvo Cars AB, Sweden.
    Influence of high ambient illuminance and display luminance on readability and subjective preference2015Ingår i: Human Vision and Electronic Imaging XX, 2015, Vol. 9394, artikel-id 93941EKonferensbidrag (Refereegranskat)
    Abstract [en]

    Many devices, such as tablets, smartphones, notebooks, fixed and portable navigation systems are used on a (nearly) daily basis, both in in- and outdoor environments. It is often argued that contextual factors, such as the ambient illuminance in relation to characteristics of the display (e.g., surface treatment, screen reflectance, display luminance...) may have a strong influence on the use of such devices and corresponding user experiences. However, the current understanding of these influence factors is still rather limited. In this work, we therefore focus in particular on the impact of lighting and display luminance on readability, visual performance, subjective experience and preference. A controlled lab study (N=18) with a within-subjects design was performed to evaluate two car displays (one glossy and one matte display) in conditions that simulate bright outdoor lighting conditions. Four ambient luminance levels and three display luminance settings were combined into 7 experimental conditions. More concretely, we investigated for each display: (1) whether and how readability and visual performance varied with the different combinations of ambient luminance and display luminance and (2) whether and how they influenced the subjective experience (through self-reported valence, annoyance, visual fatigue) and preference. The results indicate a limited, yet negative influence of increased ambient luminance and reduced contrast on visual performance and readability for both displays. Similarly, we found that the self-reported valence decreases and annoyance and visual fatigue increase as the contrast ratio decreases and ambient luminance increases. Overall, the impact is clearer for the matte display than for the glossy display.

  • 135. de Oliveira, R
    et al.
    Sjödin, N
    Fokine, M
    Margulis, W
    RISE., Swedish ICT, Acreo.
    de Matos, C
    Norin, L
    RISE., Swedish ICT, Acreo.
    Fabrication Optical Characterization of Silica Optical Fibers Containing Gold Nanoparticles2014Ingår i: ACS Applied Materials and Interfaces, ISSN 1944-8244, E-ISSN 1944-8252, Vol. 7, nr 1, s. 370-Artikel i tidskrift (Refereegranskat)
  • 136.
    Debela, A. M.
    et al.
    Sorbonne University, France.
    Ortiz, Mayreli
    Rovira i Virgili University, Spain.
    Beni, Valerio
    RISE - Research Institutes of Sweden, ICT, Acreo. Linköping University, Sweden.
    Lesage, Denis
    Sorbonne University, France.
    Cole, Richard B.
    Sorbonne University, France.
    O'Sullivan, Ciara K.
    Rovira i Virgili University, Spain; Institució Catalana de Recerca i Estudis Avançais, Spain.
    Thorimbert, Serge
    Sorbonne University, France.
    Hasenknopf, Bernold
    Sorbonne University, France.
    Functionalized deoxynucleotides and DNA primers for electrochemical diagnostics of disease predispostions2017Ingår i: ECS Transactions, Electrochemical Society Inc. , 2017, nr 11, s. 1873-1883Konferensbidrag (Refereegranskat)
    Abstract [en]

    Redox labeled DNAs are of increasing interest for the fabrication of next generation molecular tools. In the present work we are investigating the use of various redox labeled dNTPs, ddNTPs and DNA primers for use in detection of diseases. We have reported the use of Polyoxometalate (POM) labeled DNA primers and dNTPs for use in PCR and subsequently used for direct electrochemical detection of PCR products. The use of POM labeled DNAs in PCR enabled us to check the compatibility with polymerases and PCR incorporability of the modified DNAs. Furthermore we have investigated the solid-phase array based primer extension (é-PEX) with redox labelled ddNTPs (ferrocene (Fc), anthraquinone (AQ) phenothiazine (PTZ) and methylene blue (MB)) to prove the strategy of detection of single nucleotide polymorphisms using the labeled ddNTPs. This strategy will allow the development of cost-effective, rapid and user-friendly platform for the screening of known and unknown genetic mutations.

  • 137.
    Del Rosso, Tommaso
    et al.
    Pontifícia Universidade Católica do Rio de Janeiro, Brazil.
    Margulis, Walter
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Fontana, Jake
    Naval Research Laboratory, US.
    Carvalho, Isabel C.S.
    Pontifícia Universidade Católica do Rio de Janeiro, Brazil.
    10 - Plasmonics for the Characterization of Metal Organic Films and Nanoparticles2019Ingår i: Metal Nanostructures for Photonics, Elsevier , 2019, s. 223-259Kapitel i bok, del av antologi (Övrigt vetenskapligt)
    Abstract [en]

    Here, we present an overview of the ellipsometric characterization of hybrid thin films and metal nanoparticles by surface plasmon resonance (SPR) spectroscopy, together with the dynamic control of the optical properties of the latter for applications in optoelectronic devices. A description of traditional techniques used for the determination of the thickness and refractive index of organic thin films deposited over the SPR planar sensing platforms is presented, with a discussion of the most recent applications in the ellipsometric characterization of thin film of metal nanoparticles and graphene layers. We conclude by describing recent results developing a dynamically tunable plasmonic pixel, where the electric-field-controlled alignment of gold nanorods in a colloidal suspension can enable optical switching at frequencies greater than megahertz.

  • 138. deMatos, C J S
    et al.
    Margulis, W
    RISE., Swedish ICT, Acreo.
    Optical fibre modulator based on electrostatic attraction2001Ingår i: Optics Communications, ISSN 0030-4018, E-ISSN 1873-0310, Vol. 190, nr 1, s. 135-Artikel i tidskrift (Refereegranskat)
  • 139. deMatos, C J S
    et al.
    Torres, P
    Valente, L C G
    Margulis, W
    RISE., Swedish ICT, Acreo.
    Stubbe, R
    Fiber Bragg grating (FBG) characterization shaping by local pressure2001Ingår i: IEEE transactions on intelligent transportation systems (Print), ISSN 1524-9050, E-ISSN 1558-0016, Vol. 19, nr 8, s. 1206-Artikel i tidskrift (Refereegranskat)
  • 140. Demenicis, L
    et al.
    Lima, R
    Conrado, LF
    Carvalho, MC
    Margulis, W
    RISE., Swedish ICT, Acreo.
    Large Transformation-Ratio Multilayered Planar Transmission Line Transformers Using High-Dielectric-Constant Thin Film2009Ingår i: Journal of Microwaves Optoelectronics Electromagnetic Applications, Vol. 8, nr 2Artikel i tidskrift (Refereegranskat)
  • 141. Demenicis, L S
    et al.
    Conrado, L F M
    Margulis, W
    RISE., Swedish ICT, Acreo.
    Carvalgo, M C R
    Transmission line transformers in multilayered high-dielectric constant thin-film structures2005Ingår i: Microwave Optical Technology Letter, Vol. 47, nr 3, s. 290-93Artikel i tidskrift (Refereegranskat)
  • 142. Demenicis, LS
    et al.
    Conrado, LFM
    Margulis, W
    RISE., Swedish ICT, Acreo.
    Carvalho, MCR
    Experimental characterization of a planar transmission-line transformer in multilayered high-dielectric constant film structure2010Ingår i: Microwave Optical Technology Letters, Vol. 52, nr 6, s. 1337-Artikel i tidskrift (Refereegranskat)
  • 143. Demenicis, LS
    et al.
     Lima, RAA
    Conrado, LFM
     Margulis, W
    RISE., Swedish ICT, Acreo.
    Carvalho, MCR
    A CPW linear resonator method for the microwave characterization of high dielectric constant films2007Ingår i: IEEE Microwave Optics Technology Letters, Vol. 49, nr 3, s. 521-24Artikel i tidskrift (Refereegranskat)
  • 144. Deng, L
    et al.
    Pang, X
    RISE., Swedish ICT, Acreo.
    Tafur Monroy, I
    Tang, M
    Shum, P
    Liu, D
    Experimental Demonstration of Nonlinearity Phase Noise Tolerant 16-QAM OFDM W-B(75 -110 GHz) Signal Over Fiber System2014Ingår i: IEEE transactions on intelligent transportation systems (Print), ISSN 1524-9050, E-ISSN 1558-0016, Vol. 32, nr 8, s. 1442-Artikel i tidskrift (Refereegranskat)
  • 145. Deng, L
    et al.
    Zhao, Y
    Pang, X
    RISE., Swedish ICT, Acreo.
    Tang, M
    Shum, P
    Liu, D
    All-VCSEL Transmitters With Remote Optical Injection for WDM-OFDM-PON2014Ingår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 26, nr 5, s. 461-Artikel i tidskrift (Refereegranskat)
  • 146.
    Deniel, L.
    et al.
    C2N CNRS, France.
    Gay, M.
    University of Rennes CNRS, France.
    Pérez-Galacho, D.
    C2N CNRS, France.
    Baudot, C.
    STMicroelectronics, France.
    Bramerie, L.
    University of Rennes CNRS, France.
    Ozolins, Oskars
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Boeuf, F.
    STMicroelectronics, France.
    Vivien, L.
    C2N CNRS, France.
    Peucheret, C.
    University of Rennes CNRS, France.
    Marris-Morini, D.
    C2N CNRS, France.
    Generation of O-band PAM-4 signal using a silicon modulator driven by two binary sequences2019Ingår i: Proceedings of SPIE - The International Society for Optical Engineering, SPIE , 2019Konferensbidrag (Refereegranskat)
    Abstract [en]

    Silicon photonics is a promising solution for next generation of short-range optical communication systems. Silicon modulators have driven an important research activity over the past years, and many transmission links using on-off keying modulation format (OOK) were successfully demonstrated with a large diversity of modulator structures. In order to keep up with the demand of increasing bitrates for limited bandwidths in Datacom applications, higher modulation formats are explored, such as quadrature phase shift keying (QPSK) or 4-level pulse amplitude modulation (PAM-4). However, driving the modulators to generate PAM-4 signals commonly require expensive and power-hungry electronic devices such as digital-to-analog converters (DACs) for pulse-shaping and digital signal processors (DSP) for nonlinearity compensation. Lastly, new solutions were studied to overcome this issue, including new driving methods based on the use of two different input binary sequences applied directly on the modulator. While most of the reported works are focused on the C-band of communication, the O-band can present a definitive advantage due to the low dispersion of standard single-mode (SSMF) fiber. For those reasons, we demonstrate the generation of a 10-Gbaud DAC-less PAM-4 signal in the O-band using a depletion-based silicon traveling wave Mach-Zehnder modulator (TWMZM). An open eye diagram was obtained, and a bit error rate (BER) of 3.8×10 -3 was measured for a received optical power of about-6 dBm.

  • 147.
    Dev, Apurba
    et al.
    KTH Royal Institute of Technology, Sweden; Uppsala University, Sweden.
    Horak, Josef
    KTH Royal Institute of Technology, Sweden.
    Kaiser, Andreas
    KTH Royal Institute of Technology, Sweden.
    Yuan, Xichen
    UCBL Claude Bernard University Lyon 1, France.
    Perols, Anna
    KTH Royal Institute of Technology, Sweden.
    Björk, Per
    RISE., Swedish ICT, Acreo.
    Eriksson Karlström, Amelie
    KTH Royal Institute of Technology, Sweden.
    Kleimann, Pascal
    UCBL Claude Bernard University Lyon 1, France.
    Linnros, Jan
    KTH Royal Institute of Technology, Sweden.
    Electrokinetic effect for molecular recognition: A label-free approach for real-time biosensing2016Ingår i: Biosensors & bioelectronics, ISSN 0956-5663, E-ISSN 1873-4235, Vol. 82, s. 55-63Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We present a simple and inexpensive method for label-free detection of biomolecules. The method monitors the changes in streaming current in a fused silica capillary as target biomolecules bind to immobilized receptors on the inner surface of the capillary. To validate the concept, we show detection and time response of different protein-ligand and protein-protein systems: biotin-avidin and biotin-streptavidin, barstar-dibarnase and Z domain-immunoglobulin G (IgG). We show that specific binding of these biomolecules can be reliably monitored using a very simple setup. Using sequential injections of various proteins at a diverse concentration range and as well as diluted human serum we further investigate the capacity of the proposed technique to perform specific target detection from a complex sample. We also investigate the time for the signal to reach equilibrium and its dependence on analyte concentration and demonstrate that the current setup can be used to detect biomolecules at a concentration as low as 100 pM without requiring any advanced device fabrication procedures. Finally, an analytical model based on diffusion theory has been presented to explain the dependence of the saturation time on the analyte concentration and capillary dimensions and how reducing length and inner diameter of the capillary is predicted to give faster detection and in practice also lower limit of detection.

  • 148.
    D'Humières, Benoit
    et al.
    TEMATYS, France.
    Esmiller, Bruno
    Airbus Safran Launchers SAS, France.
    Gouy, Yann
    Airbus Safran Launchers SAS, France.
    Steck, Emilie
    Airbus Safran Launchers SAS, France.
    Quintana, Crisanto
    University of Oxford, UK.
    Faulkner, Graham
    University of Oxford, UK.
    O'Brien, Dominic
    University of Oxford, UK.
    Sproll, Fabian
    Deutsches Zentrum für Luft- und Raumfahrt e.V., Germany.
    Wagner, Paul
    Deutsches Zentrum für Luft- und Raumfahrt e.V., Germany.
    Hampf, Daniel
    Deutsches Zentrum für Luft- und Raumfahrt e.V., Germany.
    Riede, Wolfgang
    Deutsches Zentrum für Luft- und Raumfahrt e.V., Germany.
    Salter, Michael
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Wang, Qin
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Platt, Duncan
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Jakonis, Darius
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Piao, Xiaoyu
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Karlsson, Mikael
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Oberg, Olof
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Petermann, Ingemar
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Michalkiewicz, Aneta
    Astri Polska Sp., Poland.
    Krezel, Jerzy
    Astri Polska Sp., Poland.
    Debowska, Anna
    Astri Polska Sp., Poland.
    Thueux, Yoann
    Airbus Group Innovations, UK.
    The C3PO project: A laser communication system concept for small satellites2017Ingår i: Proceedings of SPIE - The International Society for Optical Engineering, 2017Konferensbidrag (Refereegranskat)
    Abstract [en]

    The satellite market is shifting towards smaller (micro and nanosatellites), lowered mass and increased performance platforms. Nanosatellites and picosatellites have been used for a number of new, innovative and unique payloads and missions. This trend requires new concepts for a reduced size, a better performance/weight ratio and a reduction of onboard power consumption. In this context, disruptive technologies, such as laser-optical communication systems, are opening new possibilities. This paper presents the C3PO1 system, "advanced Concept for laser uplink/ downlink CommuniCation with sPace Objects", and the first results of the development of its key technologies. This project targets the design of a communications system that uses a ground-based laser to illuminate a satellite, and a Modulating Retro-Reflector (MRR) to return a beam of light modulated by data to the ground. This enables a downlink, without a laser source on the satellite. This architecture suits well to small satellite applications so as high data rates are potentially provided with very low board mass. C3PO project aims to achieve data rates of 1Gbit/s between LEO satellites and Earth with a communication payload mass of less than 1kilogram. In this paper, results of the initial experiments and demonstration of the key technologies will be shown.

  • 149.
    Dima, Elijs
    et al.
    Mid Sweden University, Sweden.
    Brunnstrom, Kjell
    RISE - Research Institutes of Sweden, ICT, Acreo. Mid Sweden University, Sweden.
    Sjöström, Mårten
    Mid Sweden University, Sweden.
    Andersson, Mattias
    Mid Sweden University, Sweden.
    Edlund, Joakim
    Mid Sweden University, Sweden.
    Johanson, Mathias
    Alkit Communications AB, Sweden.
    Qureshi, Tahir
    HIAB AB, Sweden.
    View Position Impact on QoE in an Immersive Telepresence System for Remote Operation2019Ingår i: 2019 Eleventh International Conference on Quality of Multimedia Experience (QoMEX), Berlin, Germany: IEEE , 2019Konferensbidrag (Refereegranskat)
    Abstract [en]

    In this paper, we investigate how different viewingpositions affect a user’s Quality of Experience (QoE) and performancein an immersive telepresence system. A QoE experimenthas been conducted with 27 participants to assess the generalsubjective experience and the performance of remotely operatinga toy excavator. Two view positions have been tested, an overheadand a ground-level view, respectively, which encourage relianceon stereoscopic depth cues to different extents for accurate operation.Results demonstrate a significant difference between groundand overhead views: the ground view increased the perceiveddifficulty of the task, whereas the overhead view increased theperceived accomplishment as well as the objective performanceof the task. The perceived helpfulness of the overhead view wasalso significant according to the participants.

  • 150.
    Djupsjöbacka, A
    RISE., Swedish ICT, Acreo.
    Calculation of Signal Outage due to Polarization-Mode Dispersion2001Ingår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 13, nr 7, s. 660-Artikel i tidskrift (Refereegranskat)
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