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  • 201.
    Forzati, M
    et al.
    RISE., Swedish ICT, Acreo.
    Berntson, A
    RISE., Swedish ICT, Acreo.
    Mårtensson, J
    RISE., Swedish ICT, Acreo.
    Djupsjöbacka, A
    RISE., Swedish ICT, Acreo.
    Asynchronous Phase Modulation for the Suppression of IFWM2007Ingår i: IEEE transactions on intelligent transportation systems (Print), ISSN 1524-9050, E-ISSN 1558-0016, Vol. 25, s. 2969-75Artikel i tidskrift (Refereegranskat)
  • 202.
    Forzati, M
    et al.
    RISE., Swedish ICT, Acreo.
    Berntson, A
    RISE., Swedish ICT, Acreo.
    Mårtensson, J
    RISE., Swedish ICT, Acreo.
    Djupsjöbacka, A
    RISE., Swedish ICT, Acreo.
    Li, J
    RISE., Swedish ICT, Acreo.
    Melin, S
    40 Gbit/s field experiment over 820 km transmission link designed for 10 Gbit/s using APRZ modulation format2006Ingår i: Electronics Letters, ISSN 0013-5194, E-ISSN 1350-911X, Vol. 42, s. 991-92Artikel i tidskrift (Refereegranskat)
  • 203.
    Forzati, M
    et al.
    RISE., Swedish ICT, Acreo.
    Berntson, A
    RISE., Swedish ICT, Acreo.
    Mårtensson, J
    RISE., Swedish ICT, Acreo.
    Pincemin, E
    Gavignet, P
    Transmission of 16x40 Gb/s NRZ-OOK Channels Over 2800 km SSMF Using Asynchronous Phase Modulation2009Ingår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 21, s. 131-33Artikel i tidskrift (Refereegranskat)
  • 204.
    Forzati, M
    et al.
    RISE., Swedish ICT, Acreo.
    Iyer, S
    Berntson, A
    RISE., Swedish ICT, Acreo.
    Mårtensson, J
    RISE., Swedish ICT, Acreo.
    Experimental study of single-MZM APRZ transmitters for fibre-optic communications2008Ingår i: Electronics Letters, ISSN 0013-5194, E-ISSN 1350-911X, Vol. 44, s. 148-49Artikel i tidskrift (Refereegranskat)
  • 205.
    Forzati, M
    et al.
    VIKTORIA.
    Mattson, C
    RISE., Swedish ICT, Acreo, Broadband Technology.
    Stokab – en samhällsekonomisk analys (sammanfattning)2013Rapport (Övrigt vetenskapligt)
  • 206.
    Forzati, M
    et al.
    VIKTORIA.
    Mattson, C
    RISE., Swedish ICT, Acreo, Broadband Technology.
    Corbet, M
    RISE., Swedish ICT, Acreo, Broadband Technology.
    Cullen, D
    RISE., Swedish ICT, Acreo, Broadband Technology.
    Guide to High-Speed Broadband Investment2014Rapport (Övrigt vetenskapligt)
  • 207.
    Forzati, M
    et al.
    RISE., Swedish ICT, Acreo.
    Mattsson, C
    RISE., Swedish ICT, Acreo.
    Effekter av digitala tjänster för äldrevård – en ekonomisk studie2014Bok (Övrigt vetenskapligt)
  • 208.
    Forzati, M
    et al.
    VIKTORIA.
    Mattsson, C
    VIKTORIA.
    Stokab, a socio-economic study (acr055698en): English translation of Acreo report: acr0556982013Rapport (Övrigt vetenskapligt)
    Abstract [en]

    For almost 20 years, the City of Stockholm, via Stokab, has strategically invested in the development of an open, operator-neutral fibre network for everyone. Many articles and reports have been written on this, but primarily from a journalistic perspective. However, no research studies were until now available on the economic effects which Stokab generates for Stockholm. Acreo Swedish ICT has therefore carried out a study. The study shows that these investments have achieved the desired effects on the city’s IT development and the establishment of IT-related activities, but also that they have generated significant economic benefits for society, enterprises and citizens.<br /> The final report ”Stokab, a socio-economic analysis” describes the Stokab model and its effects on the different stakeholders, analysing Stokab’s own economy, cost savings for the municipality and the county administration, as well as benefits for businesses and end users. Moreover, Stockholm is compared to Copenhagen, which has conditions similar to Stockholm, but where the municipality has not taken an active role in the city’s fibre network.<br /> The socio-economic return on Stokab investment in fibre infrastructure is estimated in this study to over 16 billion SEK, or €1.9 billion at the current exchange rate. This result is based on a few quantifiable effects alone and we expect the actual return to be considerably larger

  • 209.
    Forzati, M
    et al.
    RISE., Swedish ICT, Acreo.
    Mattsson, Christer
    RISE., Swedish ICT, Acreo.
    FTTH-enabled digital home care – A study of economic gains2015Ingår i: ICTON 2014, 2015Konferensbidrag (Refereegranskat)
    Abstract [en]

    We analyse the extent of the annual net cost reductions stemming from the introduction of four FTTH- enabled digital services for home care, as recently introduced in the Swedish city of Västerås. In total, between 2014 and 2020, it is projected that Sweden could save up to between €3 and €6 billion if such services were massively deployed today. The cost reductions are analysed for three different types of municipality. The article also shows that there is a significant cost reductions potential for a less extensive (and more realistic) deployment scenario with only 10% of users using digital services.

  • 210.
    Forzati, M
    et al.
    RISE., Swedish ICT, Acreo.
    Mårtensson, J
    RISE., Swedish ICT, Acreo.
    Berntson, A
    RISE., Swedish ICT, Acreo.
    Djupsjöbacka, A
    RISE., Swedish ICT, Acreo.
    Johannisson, P
    RISE., Swedish ICT, Acreo.
    Reduction of intra-channel four-wave mixing using the alternate-phase RZ modulation format2002Ingår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 14, nr 9Artikel i tidskrift (Refereegranskat)
  • 211.
    Forzati, Marco
    et al.
    RISE, Swedish ICT, Acreo.
    Mattson, Crister
    RISE, Swedish ICT, Acreo.
    Socio-economic return of FTTH investment in Sweden, a prestudy2014Rapport (Övrigt vetenskapligt)
    Abstract [en]

    There is a wide range of FTTH initiatives throughout Sweden, with investments made by both telecom operators and public actors. The benefits of the investments are often discussed, especially when the investment is made by municipalities or other public bodies. This preliminary study analyses the socio-economic impacts of the investment in FTTH. The goal of the study was: Is it possible to calculate how much a krona (SEK) invested in fibre will give back to society? The conclusion is that a more comprehensive statistical data and more calculations are needed to give an exact estimate. The study, however, provides an indication that 1 SEK invested over four years brings back a minimum of 1.5 SEK in five years time. The study estimates the need for investment to achieve 100% fibre penetration, identifies and quantifies a number of significant effects of fibre deployment, and then calculates the return on investment. We recommend a more extensive study, in which the proposed model is refined and expanded with more detailed and updated data. This pre-study was sponsored by the Swedish Government’s Broadband Council (Bredbandsforum).

  • 212.
    Forzati, Marco
    et al.
    RISE., Swedish ICT, Acreo, Broadband Technology.
    Mattsson, Christer
    Socio-economics return of FTTH investment in Sweden, a prestudy: En förstudie åt Bredbandsforum2011Rapport (Övrigt vetenskapligt)
  • 213. Fossheim, S
    et al.
    Johansson, C
    RISE., Swedish ICT, Acreo.
    Fahlvik, AK
    Grace, D
    Klaveness, J
    Lanthanide-based susceptibility contrast agents : Assessment of the magnetic properties1996Ingår i: Magn. Reson. Med., Vol. 35, s. 201-Artikel i tidskrift (Refereegranskat)
  • 214.
    Fougstedt, Christoffer
    et al.
    Chalmers University of Technology, Sweden.
    Sheikh, Alireza
    Chalmers University of Technology, Sweden.
    Johannisson, Pontus
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Larsson-Edefors, Per
    Chalmers University of Technology, Sweden.
    Filter Implementation for Power-Efficient Chromatic Dispersion Compensation2018Ingår i: IEEE Photonics Journal, ISSN 1097-5764, E-ISSN 1943-0655, Vol. 10, nr 4, artikel-id 7202919Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Chromatic dispersion (CD) compensation in coherent fiber-optic systems represents a very significant DSP block in terms of power dissipation. Since spectrally efficient coherent systems are expected to find a wider deployment in systems shorter than long haul, it becomes relevant to investigate filter implementation aspects of CD compensation in the context of systems with low-to-moderate amounts of accumulated dispersion. The investigation we perform in this paper has an emphasis on implementation aspects such as power dissipation and area usage, it deals with both time-domain and frequency-domain CD compensations, and it considers both A/D-conversion quantization and fixed-point filter design aspects. To enable an accurate analysis on power dissipation and chip area, the evaluated filters are implemented in a 28-nm fully depleted silicon-on-insulator (FD-SOI) process technology. We show that an optimization of the filter response that takes pulse shaping into account can significantly reduce power dissipation and area usage of time-domain implementations, making them a viable alternative to frequency-domain implementations.

  • 215.
    Franciscangelis, C.
    et al.
    Univ. Estadual de Campinas, Brazil.
    Margulis, Walter
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Floridia, C.
    CPqD, Brazil.
    Rosolem, J. B.
    CPqD, Brazil.
    Salgado, F. C.
    CPqD, Brazil.
    Nyman, T.
    Saab AB, Sweden.
    Petersson, M.
    Saab AB, Sweden.
    Hallander, P.
    Saab AB, Sweden.
    Hällstrom, S.
    KTH Royal Institute of Technology, Sweden.
    Söderquist, I.
    Saab AB, Sweden.
    Fruett, F.
    Univ. Estadual de Campinas, Brazil.
    Vibration measurement on composite material with embedded optical fiber based on phase-OTDR2017Ingår i: Proceedings of SPIE - The International Society for Optical Engineering Volume 10168, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017; 101683Q (2017), 2017, artikel-id 101683QKonferensbidrag (Refereegranskat)
    Abstract [en]

    Distributed sensors based on phase-optical time-domain reflectometry (phase-OTDR) are suitable for aircraft health monitoring due to electromagnetic interference immunity, small dimensions, low weight and flexibility. These features allow the fiber embedment into aircraft structures in a nearly non-intrusive way to measure vibrations along its length. The capability of measuring vibrations on avionics structures is of interest for what concerns the study of material fatigue or the occurrence of undesirable phenomena like flutter. In this work, we employed the phase-OTDR technique to measure vibrations ranging from some dozens of Hz to kHz in two layers of composite material board with embedded polyimide coating 0.24 numerical aperture single-mode optical fiber. © 2017 SPIE.

  • 216.
    Franciscangelis, Carolina
    et al.
    FEEC Unicamp, Brazil.
    Fruett, Fabiano
    FEEC Unicamp, Brazil.
    Margulis, Walter
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Kjellberg, Leif
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Floridia, Claudio
    CPqD, Brazil.
    Real-time multiple machines sound listening using a phase-OTDR based distributed microphone2017Ingår i: SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference, IMOC 2017, 2017Konferensbidrag (Refereegranskat)
    Abstract [en]

    We propose and experimentally demonstrate a spatially tunable phase-OTDR based distributed microphone for listening to the sound of multiple machines. The distributed acoustic sensing capability, allied with the real-time spatial tuning, enables listening to a drill and to a cooling water system pump placed in two different sections along a single optical fiber, one at a time. The recorded acoustic waveform profile of both machines agreed with their operating cycles. Moreover, the sounds generated by both engines are successfully distinguished with the proposed method even when both machines are operating simultaneously..

  • 217. Franco, C S
    et al.
    Quintero, G A
    Myren, N
    Kudlinski, A
    Zeghlache, H
    Carvalho, H R
    Triques, A L C
    Gonzales, D M
    Gouvêa, P M P
    Martinelli, G
    Quiquempois, Y
    Lesche, B
    Margulis, W
    RISE., Swedish ICT, Acreo.
    Carvalho, I C S
    Measurement of Depletion Region Width in Poled Silica2005Ingår i: Applied Optics, ISSN 1559-128X, E-ISSN 2155-3165, Vol. 42, nr 27, s. 5793-96Artikel i tidskrift (Refereegranskat)
  • 218. Gaiarin, S.
    et al.
    Pang, X.
    Ozolins, Oskars
    RISE., Swedish ICT, Acreo.
    Jones, R. T.
    Da Silva, E. P.
    Schatz, R.
    Westergren, U.
    Popov, S.
    Jacobsen, Gunnar
    RISE., Swedish ICT, Acreo.
    Zibar, D.
    High speed PAM-8 optical interconnects with digital equalization based on neural network2016Ingår i: Asia Communications and Photonics Conference, ACP, 2016Konferensbidrag (Refereegranskat)
    Abstract [en]

    We experimentally evaluate a high-speed optical interconnection link with neural network equalization. Enhanced equalization performances are shown comparing to standard linear FFE for an EML-based 32 GBd PAM-8 signal after 4-km SMF transmission.

  • 219.
    Gao, Shang
    et al.
    Paul Scherrer Institut, Switzerland; University of Geneva, Switzerland.
    Zaharko, Oksana
    Paul Scherrer Institut, Switzerland.
    Tsurkan, Vladimir
    University of Augsburg, Germany; Academy of Sciences of Moldova, Moldova.
    Prodan, Lilian
    Academy of Sciences of Moldova, Moldova.
    Riordan, Edvard
    Cardiff University, UK.
    Lago, Jorge
    UPV-EHU Universidad del Pais Vasco, Spain.
    Fak, Björn
    Institut Laue-Langevin, France.
    Wildes, Andrew R.
    Institut Laue-Langevin, France.
    Koza, Marek M.
    Institut Laue-Langevin, France.
    Ritter, Clemens
    Institut Laue-Langevin, France.
    Fouquet, Peter
    Institut Laue-Langevin, France.
    Keller, Lukas
    Paul Scherrer Institut, Switzerland.
    Canevet, Emmanuel
    Paul Scherrer Institut, Switzerland; DTU Technical University of Denmark, Denmark.
    Medarde, Marisa
    Paul Scherrer Institut, Switzerland.
    Blomgren, Jakob
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Johansson, Christer
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Giblin, Sean R.
    Cardiff University, UK.
    Vrtnik, Stanislav
    Jozef Stefan Institute, Slovenia.
    Luzar, Jose
    Jozef Stefan Institute, Slovenia.
    Loidl, Alois
    University of Augsburg, Germany.
    Ruegg, Christina
    Paul Scherrer Institut, Switzerland; University of Geneva, Switzerland.
    Fennell, Tom
    Paul Scherrer Institut, Switzerland.
    Dipolar Spin Ice States with a Fast Monopole Hopping Rate in CdEr2X4 (X = Se, S)2018Ingår i: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 120, nr 13, artikel-id 130201Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Excitations in a spin ice behave as magnetic monopoles, and their population and mobility control the dynamics of a spin ice at low temperature. CdEr2Se4 is reported to have the Pauling entropy characteristic of a spin ice, but its dynamics are three orders of magnitude faster than the canonical spin ice Dy2Ti2O7. In this Letter we use diffuse neutron scattering to show that both CdEr2Se4 and CdEr2S4 support a dipolar spin ice state-the host phase for a Coulomb gas of emergent magnetic monopoles. These Coulomb gases have similar parameters to those in Dy2Ti2O7, i.e., dilute and uncorrelated, and so cannot provide three orders faster dynamics through a larger monopole population alone. We investigate the monopole dynamics using ac susceptometry and neutron spin echo spectroscopy, and verify the crystal electric field Hamiltonian of the Er3+ ions using inelastic neutron scattering. A quantitative calculation of the monopole hopping rate using our Coulomb gas and crystal electric field parameters shows that the fast dynamics in CdEr2X4 (X = Se, S) are primarily due to much faster monopole hopping. Our work suggests that CdEr2X4 offer the possibility to study alternative spin ice ground states and dynamics, with equilibration possible at much lower temperatures than the rare earth pyrochlore examples.

  • 220. Garcia, F C
    et al.
    Fokine, M
    RISE., Swedish ICT, Acreo.
    Margulis, W
    RISE., Swedish ICT, Acreo.
    Kashyap, R
    Mach-Zehnder interferometer using single standard telecommunication optical fibre2001Ingår i: Electronics Letter, Vol. 37, nr 24, s. 1440-Artikel i tidskrift (Refereegranskat)
  • 221. Garcia, M. -N
    et al.
    De Simone, F.
    Tavakoli, S.
    Staelens, N.
    Egger, S.
    Brunnstrom, Kjell
    RISE., Swedish ICT, Acreo.
    Raake, A.
    Quality of experience and HTTP adaptive streaming: A review of subjective studies2014Ingår i: 2014 6th International Workshop on Quality of Multimedia Experience, QoMEX 2014, 2014, s. 141-146Konferensbidrag (Refereegranskat)
    Abstract [en]

    HTTP adaptive streaming technology has become widely spread in multimedia services because of its ability to provide adaptation to characteristics of various viewing devices and dynamic network conditions. There are various studies targeting the optimization of adaptation strategy. However, in order to provide an optimal viewing experience to the end-user, it is crucial to get knowledge about the Quality of Experience (QoE) of different adaptation schemes. This paper overviews the state of the art concerning subjective evaluation of adaptive streaming QoE and highlights the challenges and open research questions related to QoE assessment. © 2014 IEEE.

  • 222.
    Gavilán, Helena
    et al.
    ICMM/CSIC Instituto de Ciencia de Materiales de Madrid, Spain.
    Kowalski, Anja
    Micromod Partikeltechnologie GmbH, Germany.
    Heinke, David
    NanoPET Pharma GmbH, Germany.
    Sugunan, Abhilash
    RISE - Research Institutes of Sweden, Biovetenskap och material, Kemi och material.
    Sommertune, Jens
    RISE - Research Institutes of Sweden, Biovetenskap och material, Kemi och material.
    Varón, Miriam
    DTU Technical University of Denmark, Denmark.
    Bogart, Lara K.
    UCL University College London, UK.
    Posth, Oliver
    Physikalisch-Technische Bundesanstalt, Germany.
    Zeng, Lunjie
    Chalmers University of Technology, Sweden.
    González-Alonso, David
    University of Cantabria, Spain.
    Balceris, Chrsitoph
    Institute of Electrical Measurement and Fundamental Electrical Engineering, Germany.
    Fock, Jeppe
    DTU Technical University of Denmark, Denmark.
    Wetterskog, Erik
    Uppsala University, Sweden.
    Frandsen, Cathrine
    DTU Technical University of Denmark, Denmark.
    Gehrke, Nicole
    NanoPET Pharma GmbH, Germany.
    Grüttner, Cordula
    Micromod Partikeltechnologie GmbH, Germany.
    Fornara, Andrea
    RISE - Research Institutes of Sweden, Biovetenskap och material, Kemi och material.
    Ludwig, Frank
    Institute of Electrical Measurement and Fundamental Electrical Engineerig, Germany.
    Veintemillas-Verdaguer, Sabino
    ICMM/CSIC Instituto de Ciencia de Materiales de Madrid, Spain.
    Johansson, Christer
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Morales, M. Puerto
    ICMM/CSIC Instituto de Ciencia de Materiales de Madrid, Spain.
    Colloidal Flower-Shaped Iron Oxide Nanoparticles: Synthesis Strategies and Coatings2017Ingår i: Particle & particle systems characterization, ISSN 0934-0866, E-ISSN 1521-4117, Vol. 34, nr 7, artikel-id 1700094Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The assembly of magnetic cores into regular structures may notably influence the properties displayed by a magnetic colloid. Here, key synthesis parameters driving the self-assembly process capable of organizing colloidal magnetic cores into highly regular and reproducible multi-core nanoparticles are determined. In addition, a self-consistent picture that explains the collective magnetic properties exhibited by these complex assemblies is achieved through structural, colloidal, and magnetic means. For this purpose, different strategies to obtain flower-shaped iron oxide assemblies in the size range 25–100 nm are examined. The routes are based on the partial oxidation of Fe(OH)2, polyol-mediated synthesis or the reduction of iron acetylacetonate. The nanoparticles are functionalized either with dextran, citric acid, or alternatively embedded in polystyrene and their long-term stability is assessed. The core size is measured, calculated, and modeled using both structural and magnetic means, while the Debye model and multi-core extended model are used to study interparticle interactions. This is the first step toward standardized protocols of synthesis and characterization of flower-shaped nanoparticles.

  • 223. Gerosa, RM
    et al.
    Sudirman, Aziza
    RISE., Swedish ICT, Acreo, Fiber Optics.
    Menezes, LdS
    Margulis, Walter
    RISE., Swedish ICT, Acreo, Fiber Optics.
    de Matos, CJS
    All-fiber high repetition rate dye laser2015Ingår i: Optical Society of America. Journal A: Optics, Image Science, and Vision, ISSN 1084-7529, E-ISSN 1520-8532, Vol. 2, nr 2, s. 186-193Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Optofluidic dye lasers may play a significant role in future laser applications in numerous areas, combining wavelength flexibility with integration and ease of operation. Nevertheless, no all-fiber integrated dye lasers have been demonstrated so far. In this paper, we report on a series of optofluidic all-fiber Rhodamine optical sources operating at a repetition rate as high as 1 kHz. Dye bleaching is avoided by circulating the Rhodamine dye during optical excitation. The laser radiation is extracted via conventional fibers that are spliced to the dye-filled capillary active medium. A tuneable amplified spontaneous emission source, a multimode laser, and a few transverse-mode laser are demonstrated by adjusting the setup. Threshold pump energies as low as similar to 1 mu J and slope efficiencies of up to mu 9% were obtained, indicating the potential for realworld applications in areas such as spectroscopy and biomedicine.

  • 224.
    Gifford, R
    RISE., Swedish ICT, Acreo.
    Continuous Glucose Monitoring: 40 Years, What We've Learned What's Next2013Ingår i: ChemPhysChem, ISSN 1439-4235, E-ISSN 1439-7641, Vol. 14, nr 10, s. 2032-Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    After 40 years of research development, today continuous glucose monitoring (CGM) is demonstrating the benefit it provides for millions with diabetes. To provide in vivo accuracy, new permselective membranes mediated systems have been developed to prevent enzyme saturation to minimize interference signals. Early in vivo implanted sensor research clearly showed that the foreign body response was a more difficult issue to overcome. Understanding the biological interface circumventing the inflammatory response continue to drive development of a CGM sensor with accuracy reliability performance suitable in a closed-loop artificial pancreas. Along with biocompatible polymer development, other complimentary algorithm data analysis techniques have improved the performance of commercial systems significantly. For example, the mean average relative difference of Dexcom€™s CGM system improved from 26 to 14€‰% its use-life was extended from 3 to 7 d. Significant gains in usability, including size, flexibility, insertion, calibration, data interface, have been incorporated into new generations of commercial CGM systems. Besides Medtronic, Dexcom, Abbott, other major players are also investing in CGM. Becton Dickinson is conducting clinical trials with an optical galactose glucose binding system. Development of fully implanted sensor systems fulfills the desire for a discreet, reliable CGM system. Research continues to find innovative ways to help make living with diabetes easier more normal, new segments are being pursued (intensive care unit, surgery, behavior modification) in which CGM is being utilized._x000D_

  • 225. Gladyshev, A. V.
    et al.
    Corbari, C.
    Tarasenko, O.
    Yatsenko, Y. P.
    Semjonov, S. L.
    Margulis, Walter
    RISE., Swedish ICT, Acreo.
    Kazansky, P. G.
    Hernandez, Y.
    Second-order nonlinearity in optical fibers: Achievements and perspectives2016Ingår i: Optics InfoBase Conference Papers, 2016Konferensbidrag (Refereegranskat)
    Abstract [en]

    Recent progress in thermal poling of silica fibers is reviewed. It is demonstrated that state-of-the-art poled fibers can be used in a number of practical applications. Challenges for further development of poled fiber devices are discussed and possible solutions proposed.

  • 226. Golabi, M.
    et al.
    Padiolleau, L.
    Chen, X.
    Jafari, M. J.
    Sheikhzadeh, E.
    Turner, A. P. F.
    Jager, E. W. H.
    Beni, Valerio
    RISE., Swedish ICT, Acreo.
    Doping polypyrrole films with 4-N-Pentylphenylboronic acid to enhance affinity towards bacteria and dopamine2016Ingår i: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 11, nr 11, artikel-id e0166548Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Here we demonstrate the use of a functional dopant as a fast and simple way to tune the chemical affinity and selectivity of polypyrrole films. More specifically, a boronic-functionalised dopant, 4-N-Pentylphenylboronic Acid (PBA), was used to provide to polypyrrole films with enhanced affinity towards diols. In order to prove the proposed concept, two model systems were explored: (i) the capture and the electrochemical detection of dopamine and (ii) the adhesion of bacteria onto surfaces. The chemisensor, based on overoxidised polypyrrole boronic doped film, was shown to have the ability to capture and retain dopamine, thus improving its detection; furthermore the chemisensor showed better sensitivity in comparison with overoxidised perchlorate doped films. The adhesion of bacteria, Deinococcus proteolyticus, Escherichia coli, Streptococcus pneumoniae and Klebsiella pneumoniae, onto the boric doped polypyrrole film was also tested. The presence of the boronic group in the polypyrrole film was shown to favour the adhesion of sugar-rich bacterial cells when compared with a control film (Dodecyl benzenesulfonate (DBS) doped film) with similar morphological and physical properties. The presented single step synthesis approach is simple and fast, does not require the development and synthesis of functional monomers, and can be easily expanded to the electrochemical, and possibly chemical, fabrication of novel functional surfaces and interfaces with inherent pre-defined sensing and chemical properties.

  • 227.
    Golabi, Mohsen
    et al.
    Linköping University, Sweden.
    Kuralay, Filiz
    Ordu University, Turkey.
    Jager, Edwin W. H.
    Linköping University, Sweden.
    Beni, Valerio
    RISE - Research Institutes of Sweden, ICT, Acreo. Linköping University, Sweden.
    Turner, Anthony P. F.
    Linköping University, Sweden.
    Electrochemical bacterial detection using poly(3-aminophenylboronic acid)-based imprinted polymer2017Ingår i: Biosensors & bioelectronics, ISSN 0956-5663, E-ISSN 1873-4235, Vol. 93, s. 87-93Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Biosensors can deliver the rapid bacterial detection that is needed in many fields including food safety, clinical diagnostics, biosafety and biosecurity. Whole-cell imprinted polymers have the potential to be applied as recognition elements in biosensors for selective bacterial detection. In this paper, we report on the use of 3-aminophenylboronic acid (3-APBA) for the electrochemical fabrication of a cell-imprinted polymer (CIP). The use of a monomer bearing a boronic acid group, with its ability to specifically interact with cis-diol, allowed the formation of a polymeric network presenting both morphological and chemical recognition abilities. A particularly beneficial feature of the proposed approach is the reversibility of the cis-diol-boronic group complex, which facilitates easy release of the captured bacterial cells and subsequent regeneration of the CIP. Staphylococcus epidermidis was used as the model target bacteria for the CIP and electrochemical impedance spectroscopy (EIS) was explored for the label-free detection of the target bacteria. The modified electrodes showed a linear response over the range of 103–107 cfu/mL. A selectivity study also showed that the CIP could discriminate its target from non-target bacteria having similar shape. The CIPs had high affinity and specificity for bacterial detection and provided a switchable interface for easy removal of bacterial cell.

  • 228. Gomes, A S L
    et al.
    Carvalho, M T
    Sundheimer, M L
    Bastos-Filho, C J A
    Martins-Filho, J F
    von der Weid, J P
    Margulis, W
    RISE., Swedish ICT, Acreo.
    Low-pump-power, short-fiber copropagating dual-pumped (800 1050nm) thulium-doped fiber amplifier2003Ingår i: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 28, nr 5, s. 334-36Artikel i tidskrift (Refereegranskat)
  • 229. Gomes, A S L
    et al.
    Carvalho, M T
    Sundheimer, M L
    Bastos-Filho, C J
    Martins-Filho, J F
    Costa e Silva, M B
    von der Weid, J P
    Margulis, W
    RISE., Swedish ICT, Acreo.
    Characterization of efficient dual wavelength (1050 nm+800 nm) pumping scheme for thulium doped fiber amplifiers2003Ingår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 25, nr 2, s. 200-202Artikel i tidskrift (Refereegranskat)
  • 230. Gouvêa, P. M. P.
    et al.
    Rugeland, Patrik
    RISE., Swedish ICT, Acreo.
    Gomes, M. S. P.
    Margulis, Walter
    RISE., Swedish ICT, Acreo.
    Component and setup for insertion of gases in a hollow-core optical fiber sensor2015Ingår i: Proceedings of SPIE - The International Society for Optical Engineering, 2015Konferensbidrag (Refereegranskat)
    Abstract [en]

    An optical fiber component and setup were developed to insert and remove gases from hollow-core optical fibers, allowing gas/light mixing over the length of the fiber for gas sensing applications. Transmitted signals acquired at the output of the fiber contain information regarding absorption occurring inside the fiber, providing a spectroscopic signature of the gas or gases in the fiber. Spectra for 1 atm of acetylene (C2H2) around 1525 nm and 1 atm of carbon dioxide (CO2) around 1432 nm were obtained and compared to HITRAN data, showing good agreement. The setup can also be used to prepare gas cells. © 2015 SPIE.

  • 231.
    Granberg, H
    RISE., Swedish ICT, Acreo.
    Spectral Light Absorption and Gloss of Cyan2002Rapport (Övrigt vetenskapligt)
  • 232.
    Granberg, H
    et al.
    RISE., Swedish ICT, Acreo.
    Beland, M-C
    RISE., Swedish ICT, Acreo.
    Modelling the angle-dependent light scattering from sheets of pulp fibre fragments2004Ingår i: Nordic Pulp Paper Res.J., Vol. 19, nr 3, s. 354-Artikel i tidskrift (Refereegranskat)
  • 233.
    Granberg, H
    et al.
    RISE., Swedish ICT, Acreo.
    Edström, P
    Quantification of the intrinsic error of the Kubelka-Munk model caused by strong light absorption2003Ingår i: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 29, s. 386-90Artikel i tidskrift (Refereegranskat)
  • 234.
    Granberg, H
    et al.
    RISE., Swedish ICT, Acreo.
    Rundlöf, M
    Mattsson, L M
    Influence of surface-induced nonuniform reflectance on the diffuse reflectance factor Part 1:model predictions2003Ingår i: J.Pulp Paper Sci., Vol. 29, s. 247-253Artikel i tidskrift (Refereegranskat)
  • 235.
    Granberg, H
    et al.
    RISE., Swedish ICT, Acreo.
    Rundlöf, M
    Mattsson, L M
    Influence of surface-induced nonuniform reflectance on the diffuse reflectance factor. Part 2:Experimental verification on coated substrates2003Ingår i: J.Pulp Paper Sci., Vol. 29, s. 254-59Artikel i tidskrift (Refereegranskat)
  • 236. Grishin, AM
    et al.
    Vanin, EV
    RISE., Swedish ICT, Acreo.
    Tarasenko, OV
    RISE., Swedish ICT, Acreo.
    Khartsev, SI
    Johansson, P
    RISE., Swedish ICT, Acreo.
    Strong broad C-broom-temperature photoluminescence in amorphous Er2O3 film2006Ingår i: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 89, s. 21114-Artikel i tidskrift (Refereegranskat)
  • 237. Gurell, J
    et al.
    Bengtson, A
    Falkenström, M
    Hansson,  BAM 
    RISE., Swedish ICT, Acreo.
    Laser induced breakdown spectroscopy for fast elemental analysis sorting of metallic scrap pieces using certified reference materials2012Ingår i: Spectrochimica Acta Part B: Atomic Spectroscopy, Vol. 74, s. 46-Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A setup utilizing laser induced breakdown spectroscopy (LIBS) for performing elemental analysis in order to classify metallic samples is currently under construction. The setup uses short laser pulses to locally ablate the sample create luminous plasmas. The emitted light is analyzed spectroscopically for instantaneous determination of the elemental composition. A table-top system based on a compact CCD spectrometer has been constructed combined with fast software in order to test the concept of remote, single shot material classification with LIBS. Certified reference materials with known elemental compositions were used in the laboratory tests. We report on successful laboratory tests in which samples were classified using an analysis based on optical emission following a single laser pulse with an operating distance of approximately 1 m. Details regarding field tests of this versatile promising technique are discussed._x000D_

  • 238.
    Gurell, Jonas
    et al.
    RISE, Swerea, Swerea KIMAB AB.
    Bengtson, Arne
    RISE, Swerea, Swerea KIMAB AB.
    Falkenström, Magnus
    RISE, Swerea, Swerea KIMAB AB.
    Hansson, B.A.M.
    Acreo AB.
    Laser induced breakdown spectroscopy for fast elemental analysis and sorting of metallic scrap pieces using certified reference materials2012Ingår i: Spectrochimica Acta Part B - Atomic Spectroscopy, ISSN 0584-8547, E-ISSN 1873-3565, Vol. 74-75, s. 46-50Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A setup utilizing laser induced breakdown spectroscopy (LIBS) for performing elemental analysis in order to classify metallic samples is currently under construction. The setup uses short laser pulses to locally ablate the sample and create luminous plasmas. The emitted light is analyzed spectroscopically for instantaneous determination of the elemental composition. A table-top system based on a compact CCD spectrometer has been constructed and combined with fast software in order to test the concept of remote, single shot material classification with LIBS. Certified reference materials with known elemental compositions were used in the laboratory tests. We report on successful laboratory tests in which samples were classified using an analysis based on optical emission following a single laser pulse and with an operating distance of approximately 1 m. Details regarding field tests of this versatile and promising technique are discussed. © 2012 Elsevier B.V.

  • 239. Gustafsson, O
    et al.
    Berggren, J
    Ekenberg, U
    Hallen, A
    Hammar, M
    Höglund, L
    Karim, A
    Noharet, B
    Wang, Q
    RISE., Swedish ICT, Acreo.
    Gromov, A
    Almqvist, S
    Zhang, A
    Junique, S
    Andersson, JY
    RISE., Swedish ICT, Viktoria.
    Asplund, C
    Marcks von Wurtemberg, R
    Malm, H
    Martijn, H
    Long-wavelength infrared quantum-dot based interbphotodetectors2010Ingår i: Infrared physics & technology, ISSN 1350-4495, E-ISSN 1879-0275, Vol. 54, nr 3, s. 287-Artikel i tidskrift (Refereegranskat)
  • 240. Gustafsson, O
    et al.
    Karim, A
    Berggren, J
    Wang, Q
    RISE., Swedish ICT, Acreo.
    Reuterskiöld-Hedlund, C
    Ernerheim-Jokumsen, C
    Soldemo, M
    Weissenrieder, J
    Persson, S
    Almqvist, S
    Ekenberg, U
    Noharet, B
    Asplund, C
    Göthelid, M
    Andersson, J Y
    RISE., Swedish ICT, Viktoria.
    Hammar, M
    Photoluminescence photoresponse from InSb/InAs-based quantum dot structures2012Ingår i: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 20, nr 19, s. 21264-71Artikel i tidskrift (Refereegranskat)
  • 241. Gustafsson, O
    et al.
    Karim, A
    Wang, Q
    RISE., Swedish ICT, Acreo.
    Berggren, J
    Asplund, C
    Andersson, JY
    Hammar, M
    Long-wavelength infrared photoluminescence from InGaSb/InAs quantum dots2013Ingår i: Infrared physics & technology, ISSN 1350-4495, E-ISSN 1879-0275, Vol. 59, s. 89-92Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We study the growth of self-assembled InGaSb/InAs quantum dots (QDs) investigate how gallium can be used to reduce the optical transition energy in the InSb QD system. InGaSb QDs were grown on InAs (0 0 1) substrates by metal-organic vapor-phase epitaxy (MOVPE) the material was characterized by photoluminescence (PL) measurements. A PL peak wavelength is demonstrated beyond 8 Î¼m at 77 K, which is significantly longer than what has been reported for InSb QDs. The results suggest that InGaSb QDs can be grown at a larger size than InSb QDs leading to reduced confinement in the QDs._x000D_

  • 242. Gustafsson, S
    et al.
    Fornara, A
    Petersson, K
    Muhammed, M
    Johansson, C
    RISE., Swedish ICT, Acreo.
    Olsson, E
    Evolution of structural magnetic properties of magnetite nanoparticles for biomedical applications2010Ingår i: Crystal Growth & Design, Vol. 10, nr 5, s. 2278-84Artikel i tidskrift (Refereegranskat)
  • 243. Gustafsson, S
    et al.
    Fornara, A
    Ye, F
    Petersson, K
    Johansson, C
    RISE., Swedish ICT, Acreo.
    Muhammed, M
    Olsson, E
    TEM investigation of magnetite nanoparticles for biomedical applications2008Ingår i: EMC, Vol. 2, s. 209-Artikel i tidskrift (Refereegranskat)
  • 244. Gutierrez, L
    et al.
    Costo, R
    Gruttner, C
    Westphal, F
    Gehrke, N
    Heinke, D
    Fornara, A
    Pankhurst, QA
    Johansson, C
    RISE., Swedish ICT, Acreo.
    Veintemillas-Verdaguer, S
    Morales, MP
    Synthesis methods to prepare single- multi-core iron oxide nanoparticles for biomedical applications2015Ingår i: Dalton Transactions, ISSN 1477-9226, E-ISSN 1477-9234, Vol. 44, s. 2943-52Artikel i tidskrift (Refereegranskat)
  • 245. Gutt, T.
    et al.
    Przewlocki, H. M.
    Piskorski, K.
    Mikhaylov, A.
    RISE., Swedish ICT, Acreo.
    Bakowski, M.
    RISE., Swedish ICT, Acreo.
    PECVD and thermal gate oxides on 3C vs. 4H SiC-Impact on leakage, traps and energy offsets2014Ingår i: ECS Transactions, 2014, nr 7, s. 237-243Konferensbidrag (Refereegranskat)
    Abstract [en]

    Energy-band model offsets, trap density distributions and gate leakage characteristics of MOS capacitors with PECVD and thermal gate oxides on 3C- and 4H-SiC were compared. The difference in trap energy distributions between the polytypes demonstrated in this experiment confirms that the 3C-SiC polytype is less vulnerable to near-interface traps (NIT) which are found in high density in the 4H-SiC. It was also shown that the examined 3C-SiC substrates demonstrated higher leakage currents due to higher dislocation concentration compared with 4H-SiC. Finally, the energy band model of the SiC MOS devices was described quantitatively which could be considered in further development of the devices and processes.

  • 246. Gutt, T
    et al.
    Przewlocki, HM
    Bakowski, M
    RISE., Swedish ICT, Acreo.
    A C-V method of slow-switching interface traps identification in silicon carbide MOS structures2010Ingår i: Materials Science Forum, ISSN 0255-5476, E-ISSN 1662-9752, Vol. 645-648, s. 523-Artikel i tidskrift (Refereegranskat)
  • 247.
    Haasl, Sjoerd
    et al.
    RISE., Swedish ICT, Acreo, Sensor Systems.
    Stemme, Göran
    Comprehensive Microsystems, Elsevier, Editors: Yogesh Gianchandani, Osamu Tabata and Hans Zappe, 20072007Kapitel i bok, del av antologi (Övrigt vetenskapligt)
  • 248.
    Hammarling, Krister
    et al.
    Mid Sweden University, Sweden.
    Engholm, Magnus
    Mid Sweden University, Sweden.
    Andersson, Henrik
    Mid Sweden University, Sweden.
    Sandberg, Mats
    RISE - Research Institutes of Sweden, ICT, Acreo. Mid Sweden University, Sweden.
    Nilsson, Hans Erik
    Mid Sweden University, Sweden.
    Broad-range hydrogel-based pH sensor with capacitive readout manufactured on a flexible substrate2018Ingår i: Chemosensors, ISSN 2227-9040, Vol. 6, nr 3, artikel-id 30Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Environmental monitoring of land, water and air, is an area receiving greater attention because of human health and safety concerns. Monitoring the type of pollution and concentration levels is vital, so that appropriate contingency plans can be determined. To effectively monitor the environment, there is a need for new sensors and sensor systems that suits these type of measurements. However, the diversity of sensors suitable for low, battery powered- and large area sensor systems are limited. We have manufactured and characterized a flexible pH sensor using laser processing and blade coating techniques that is able to measure pH between 2.94 and 11.80. The sensor consists of an interdigital capacitance with a pH sensitive hydrogel coating. Thin sensors can reach 95% of their final value value within 3 min, and are stable after 4 min. Good repeatability was achieved in regard to cycling of the sensor with different pH and multiple measurements from dry state. We have also studied the relation between an interdigital capacitance penetration depth and hydrogels expansion. We believe that our passive sensor is suitable to be used in low power and large area sensor networks.

  • 249.
    Hammarling, Krister
    et al.
    Mid Sweden University, Sweden.
    Sandberg, Mats
    RISE - Research Institutes of Sweden, ICT, Acreo. Mid Sweden University, Sweden.
    Engholm, Magnus
    Mid Sweden University, Sweden.
    Andersson, Henrik
    Mid Sweden University, Sweden.
    Nilsson, Hans-Erik
    Mid Sweden University, Sweden.
    Synthesis, Curing Behavior and Swell Tests of pH-Responsive Coatings from Acryl-Terminated Oligo(beta-Amino Esters)2018Ingår i: Chemosensors, ISSN 2227-9040, Vol. 6, nr 1, artikel-id 10Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The ability of acryl-terminated oligo(beta-amino esters) (AOBAE) to be coated on fibers and printed electronics without solvents and to be cross-linked to a pH-responsive coatings, makes AOBAE-based coatings a potential type of pH-sensor coating. However, there are currently no reports of AOBAEs used as a pH-responsive coating material in sensor applications. Here we present an investigation of the synthesis, curing behavior and swell tests of AOBAEs. AOBAEs were synthesized from reacting an excess of asymmetric diacrylates with piperazine without the use of any solvents. They were then cross-linked to an insoluble network by UV-curing. Nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopy were used to characterize the AOBAEs. NMR was used to clarify the irregular structure of the AOBAE. FTIR was used to monitor the effects of UV-curing dose and air exposure on monomer conversion during curing. An interferometric technique was used to monitor the swelling behavior of the coating in response to pH variations. Swell experiments showed that the AOBAE also responded to pH variations after polymerization. Therefore, AOBAE is an interesting class of material with potential use as a pH responsive coating in optical-and printed electronics pH-sensors applications.

  • 250. Hanson, M
    et al.
    Ivanov, ZG
    Johansson, C
    RISE., Swedish ICT, Acreo.
    Kislinski, Y
    Larsson, P
    A magnetic phase transition studied with high TC SQUIDs1998Ingår i: J. Magn. Magn. Mat., Vol. 177, s. 519-Artikel i tidskrift (Refereegranskat)
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