Experimental demonstration of nanoCARS: coherent anti-Stokes Raman scattering in mesoporous silica aerogels infiltrated with condensed- and gas-phase Raman-active materials

Coherent anti-Stokes Raman scattering (CARS) is shown to allow the reliable detection of Raman-active modes of gas-phase molecular nitrogen, and also toluene molecules in the condensed and gas phases infiltrated into mesoporous silica aerogels. We experimentally demonstrate a nanoscale extension of CARS methodology, referred to as nanoCARS, adapting CARS for local probing of nanostructures and nanocomposite materials, and also for the sensing of Raman-active species in the liquid and gas phases in a nanocomposite host.

Subjects

Coherent anti-Stokes Raman scattering

NanoCARS

Nanocomposite materials

DDC Class

540: Chemie

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Experimental demonstration of nanoCARS: coherent anti-Stokes Raman scattering in mesoporous silica aerogels infiltrated with condensed- and gas-phase Raman-active materials