Gas- and condensed-phase sensing by coherent anti-Stokes Raman scattering in a mesoporous silica aerogel host

Journal
Chemical physics letters  
Volume
394
Issue
1-3
Start Page
1
End Page
4
Citation
Chemical Physics Letters 394 (1-3): 1-4 (2004-08-11)
Publisher DOI
10.1016/j.cplett.2004.05.114
Scopus ID
2-s2.0-3843120848
Publisher
Elsevier
We demonstrate efficient coherent anti-Stokes Raman scattering from Raman-active modes of toluene molecules in solution and gas-phase nitrogen molecules infiltrated into mesoporous silica aerogels. Due to their high porosity, high transparency in the visible, and weak scattering, silica aerogels are shown to provide an ideal host for Raman-active gases and liquids, detected and analyzed by coherent anti-Stokes Raman scattering, allowing the creation of gas- and condensed-phase sensors of chemical and biological species, including sensors of pollutants and aerosols.
DDC Class
530: Physik
540: Chemie
More Funding Information
This study was supported in part by the President of Russian Federation Grant MD-42.2003.02, the Russian Foundation for Basic Research (Projects Nos. 03-02-16929 and 02- 02-17098), and INTAS (Projects Nos. 03-51-5037 and 03-51-5288). The research described in this publication was made possible in part by Award No. RP2-2558 of the US Civilian Research and Development Foundation for the Independent States of the Former Soviet Union (CRDF). This material is also based upon work supported by the European Research Office of the US Army under Contract No. 62558-03-M-0033.