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Disordered, Strongly Scattering Porous Materials as Miniature Multipass Gas Cells

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Author

  • Tomas Svensson
  • Erik Adolfsson
  • Märta Lewander
  • Can Xu
  • Sune Svanberg

Summary, in English

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).

Department/s

Publishing year

2011

Language

English

Publication/Series

Physical Review Letters

Volume

107

Issue

14

Document type

Journal article

Publisher

American Physical Society

Topic

  • Atom and Molecular Physics and Optics

Status

Published

Research group

  • Biophotonics

ISBN/ISSN/Other

  • ISSN: 1079-7114