We present a coherent Raman scattering (CRS) spectroscopy technique achieving a CRS spectral acquisition rate of 50,000 spectra/second over a Raman spectral region of 200 - 1430 cm-1 with a resolution of 4.2 cm-1. This ultrafast, broadband and high-resolution CRS spectroscopic performance is realized by a polygonal Fourier-domain delay line serving as an ultra-rapid optical-path-length scanner in a broadband Fourier-transform coherent anti-Stokes Raman scattering (CARS) spectroscopy platform. We present a theoretical description of the technique and demonstrate continuous, ultrafast, broadband, and high-resolution CARS spectroscopy on a liquid toluene sample using our proof-of-concept setup.
Miu Tamamitsu, Yusuke Sakaki, Tasuku Nakamura, G. Krishna Podagatlapalli, Takuro Ideguchi, and Keisuke Goda, "Ultrafast broadband Fourier-transform CARS spectroscopy operating at 50,000 spectra/second," Proc. SPIE 10076, High-Speed Biomedical Imaging and Spectroscopy: Toward Big Data Instrumentation and Management II, 1007608 (Presented at SPIE BiOS: January 30, 2017; Published: 22 February 2017); https://doi.org/10.1117/12.2249726.
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