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Proceedings Article

Experimental verification of the effect of slow light on molecular absorption

[+] Author Affiliations
Luc Thevenaz, Sanghoon Chin, Isabelle Dicaire, Jean-Charles Beugnot, Stella Foaleng Mafang

Ecole Polytechnique Fédérale de Lausanne (Switzerland)

Miguel González Herráez

Univ. de Alcalá (Spain)

Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75034W (October 05, 2009); doi:10.1117/12.835392
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From Conference Volume 7503

  • 20th International Conference on Optical Fibre Sensors
  • Julian D. C. Jones
  • Edinburgh, United Kingdom | October 05, 2009

abstract

The absorption of light by a gas molecule has been measured comparatively using light propagating in normal conditions and in a slow light regime. The experiment is designed to make the 2 measurements possible without modifying the interaction conditions, so that the sole effect of slow light is unambiguously observed. A 26% group velocity reduction induced by stimulated Brillouin scattering in a gas-filled microstructured fiber caused no observable change in the measured absorption, so that it is proved that material slow light does not enhance Beer-Lambert absorption and has a null impact on gas sensing or spectroscopic applications.

© (2009) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Luc Thevenaz ; Sanghoon Chin ; Isabelle Dicaire ; Jean-Charles Beugnot ; Stella Foaleng Mafang, et al.
"Experimental verification of the effect of slow light on molecular absorption", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75034W (October 05, 2009); doi:10.1117/12.835392; http://dx.doi.org/10.1117/12.835392


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