Low frequency coherent Raman imaging robust to optical scattering
Optics
2024-02-13 v1 Chemical Physics
Abstract
We demonstrate low-frequency interferometric impulsive stimulated Raman scattering (ISRS) imaging with high robustness to distortions by optical scattering. ISRS is a pump-probe coherent Raman spectroscopy that can capture Raman vibrational spectra. Recording of ISRS spectra requires isolation of a probe pulse from the pump pulse. While this separation is simple in non-scattering specimens, such as liquids, scattering leads to significant pump pulse contamination and prevent the extraction of a Raman spectrum. We introduce a robust method for ISRS microscopy that works in complex scattering samples. High signal-to-noise ISRS spectra are obtained even when the pump and probe pulses pass through many scattering layers.
Cite
@article{arxiv.2402.07006,
title = {Low frequency coherent Raman imaging robust to optical scattering},
author = {David R. Smith and Jesse W. Wilson and Siddarth Shivkumar and Herve Rigneault and Randy A. Bartels},
journal= {arXiv preprint arXiv:2402.07006},
year = {2024}
}
Comments
13 pages; 5 figures