High speed doppler Raman for ultrasensitive coherent Raman microcopy

Randy A. Bartels

doi:10.1117/12.2636913

3 October 2022 High speed doppler Raman for ultrasensitive coherent Raman microcopy

Randy A. Bartels

Proceedings Volume PC12228, Ultrafast Nonlinear Imaging and Spectroscopy X; PC1222809 (2022) https://doi.org/10.1117/12.2636913
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

We present advances in Doppler Raman (DR) microscopy that enable rapid Raman imaging of complex samples. DR spectroscopy is a form of impulsive-stimulated Raman spectroscopy (ISRS), employing a pump-probe excitation. In ISRS, refraction perturbation is generated the pump pulse, imparting a small center frequency shift to the spectrum of the probe pulse. This small frequency shift is converted into a probe pulse timing jitter that is detected by adapted methods of precision timing jitter metrology. We apply this method of high-sensitive ISRS to imaging of complex specimens at high speeds with experimental arrangements that are robust to optical scattering.

Conference Presentation

Citation Download Citation

Randy A. Bartels "High speed doppler Raman for ultrasensitive coherent Raman microcopy", Proc. SPIE PC12228, Ultrafast Nonlinear Imaging and Spectroscopy X, PC1222809 (3 October 2022); https://doi.org/10.1117/12.2636913

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