Ultrashort pump-probe depletion spectroscopy to discriminate organic and biological particles

F. Courvoisier, V. Boutou, L. Guyon, V. Wood, J. P. Wolf, A. Bartelt, M. Roth, H. Rabitz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The fluorescence from living bacteria, induced by a ultrashort 270 nm pump-pulse is depleted up to 50 percent by an optically delayed ultrafast 800 nm probe-pulse in a pump-probe arrangement. Depletion is also observed for Trp in water in contrast with organic molecules such as Naphtalene or diesel fuel, despite similar absorption and fluorescence spectra. This remarkable difference allows us to propose a new remote sensing method able to efficiently discriminate organic from biological aerosols.

Original languageEnglish (US)
Title of host publicationPhotonic Applications Systems Technologies Conference, PhAST 2005
PublisherOptical Society of America
ISBN (Print)1557527709, 9781557527707
StatePublished - Jan 1 2005
EventPhotonic Applications Systems Technologies Conference, PhAST 2005 - Baltimore, MD, United States
Duration: May 23 2005May 23 2005

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701

Other

OtherPhotonic Applications Systems Technologies Conference, PhAST 2005
CountryUnited States
CityBaltimore, MD
Period5/23/055/23/05

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Atomic and Molecular Physics, and Optics

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  • Cite this

    Courvoisier, F., Boutou, V., Guyon, L., Wood, V., Wolf, J. P., Bartelt, A., Roth, M., & Rabitz, H. (2005). Ultrashort pump-probe depletion spectroscopy to discriminate organic and biological particles. In Photonic Applications Systems Technologies Conference, PhAST 2005 (Optics InfoBase Conference Papers). Optical Society of America.