Jiahui Peng
Paper Publications
Simultaneous In Situ Characterizations of Ultrashort Laser Pulses and the Nonlinear Susceptibility of the Irradiated Medium via Time-Resolved Hybrid Coherent Anti-Stokes Raman Scattering Spectroscopy
Release time:2021-06-03 Hits:
Indexed by:Journal paper
Journal:The Journal of Physical Chemistry Letters
Key Words:CARS, Phase retrieval algorithms, Deconvolution, Extraction, Probes, Lasers
DOI number:10.1021/acs.jpclett.0c03431
Date of Publication:2021-01-13
Abstract:We propose and test a method of simultaneously characterizing ultrashort laser pulses and the nonlinear susceptibility of the irradiated medium at the site where nonlinear interactions occur. In this method, a coherent anti-Stoke Raman scattering (CARS) spectrogram is generated with the hybrid CARS technique. We confirm that abundant information is contained in, and can be extracted from, this spectrogram and develop an extraction algorithm. With this method, quantitative and comparable broadband CARS imaging based on phase retrieval is achievable without a second material for nonresonant background generation. Furthermore, this method also paves the way for studying highly localized nonlinear light–matter interactions.
Links to published journals:https://pubs.acs.org/doi/10.1021/acs.jpclett.0c03431