Epi-detected hybrid coherent Raman micro-spectroscopy
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We demonstrate efficient epi-detected coherent Raman micro-spectroscopy using a simple laser system based on a femtosecond mode-locked oscillator. In our experiment, the non-resonant background is eliminated by using a hybrid technique, which combines laser pulse shaping and timing with frequency-resolved detection, and is based on the different temporal behavior of parametric and nonparametric processes. We perform careful analysis to make sure the coherent Raman-resonant signal is generated in the backward direction, and not forward-generated and then back-scattered. This demonstration may have important implications for coherent Raman microscopy.
author list (cited authors)
Peng, J., & Sokolov, A. V.
complete list of authors
Peng, Jiahui||Sokolov, Alexei V