Coherent anti-Stokes Raman spectroscopy enhanced by multiple overtone resonances

Luojia Wang; Georgi I. Petrov; Luqi Yuan; Vladislav V. Yakovlev

doi:10.1117/12.2583345

5 April 2021 Coherent anti-Stokes Raman spectroscopy enhanced by multiple overtone resonances

Luojia Wang, Georgi I. Petrov, Luqi Yuan, Vladislav V. Yakovlev

Proceedings Volume 11655, Label-free Biomedical Imaging and Sensing (LBIS) 2021; 1165513 (2021) https://doi.org/10.1117/12.2583345
Event: SPIE BiOS, 2021, Online Only

Abstract

We report a novel approach to coherent anti-Stokes spectroscopy based on multiple overtone resonances in both theory and experiment. A pump laser with the tunable wavelength at the near infrared range is used to excite the inner-band vibrational transition of the C-H stretching vibrations, commonly corresponding to biological molecules. Strong coherent signals with higher chemical specificity are observed in experiments. Our work points to a new route for applying resonantly enhanced nonlinear optical spectroscopy in the deeper tissue optical imaging with near infrared lasers, which is important for various biomedical applications.

Conference Presentation

Citation Download Citation

Luojia Wang, Georgi I. Petrov, Luqi Yuan, and Vladislav V. Yakovlev "Coherent anti-Stokes Raman spectroscopy enhanced by multiple overtone resonances", Proc. SPIE 11655, Label-free Biomedical Imaging and Sensing (LBIS) 2021, 1165513 (5 April 2021); https://doi.org/10.1117/12.2583345

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