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Disordered, strongly scattering porous materials as miniature multipass gas cells
Lund University.
RISE - Research Institutes of Sweden, Swerea, Swerea IVF.ORCID iD: 0000-0003-4860-8763
Lund University.
Lund University.
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2011 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 107, no 14Article in journal (Refereed) Published
Abstract [en]

We investigate the interaction of light and gas in strongly scattering nano- and macroporous media. Manufacturing and structural characterization of ZrO2, Al2O3 and TiO2 ceramics with different pore sizes, measurements of optical properties using photon time-of-flight spectroscopy, and high-resolution laser spectroscopy of O 2 at 760 nm are reported. We show that extreme light scattering can be utilized to realize miniature spectroscopic gas cells. Path length enhancement factors up to 750 are reached (5.4 m path through gas for light transmitted through a 7 mm ZrO2 with 49% porosity and 115 nm pores). © 2011 American Physical Society.

Place, publisher, year, edition, pages
2011. Vol. 107, no 14
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-13357DOI: 10.1103/PhysRevLett.107.143901Scopus ID: 2-s2.0-80053178274OAI: oai:DiVA.org:ri-13357DiVA: diva2:973563
Available from: 2016-09-22 Created: 2016-09-22 Last updated: 2017-08-09Bibliographically approved

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