Simultaneous low- and high-wavenumber optical fiber CARS probe using vector adjustment and pulse-to-pulse alignment

Tong Wang; Junfeng Jiang; Kun Liu; Shuang Wang; Panpan Niu; Liu Yize; Tianhua Xu; Tiegen Liu

doi:10.1117/12.2691713

27 September 2023 Simultaneous low- and high-wavenumber optical fiber CARS probe using vector adjustment and pulse-to-pulse alignment

Tong Wang, Junfeng Jiang, Kun Liu, Shuang Wang, Panpan Niu, Liu Yize, Tianhua Xu, Tiegen Liu

Author Affiliations +

Proceedings Volume 12813, Asia-Pacific Optical Sensors Conference (APOS 2023); 1281308 (2023) https://doi.org/10.1117/12.2691713
Event: Asia Pacific Optical Sensors Conference 2023, 2023, Tianjin, China

Abstract

We propose and demonstrate an optical fiber probe which can simultaneously detect low and high-wavenumber coherent anti-Stokes Raman scattering (CARS) spectrum of samples. The low and high-wavenumber resonance signals are excited by the pump pulses and dual-Stokes pulses which are generated by the soliton self-frequency shift. The optical fiber taper probe focuses and delivers CARS excitation pulses to the samples. The detection of low and high-wavenumber regions can be achieved by the characterization of CN triple stretching vibrations and CH stretching vibrations. The simultaneous low and high-wavenumber optical fiber CARS probe will enable wider applications of quantitative chemical detection in in vivo biomedical research.

Citation Download Citation

Tong Wang, Junfeng Jiang, Kun Liu, Shuang Wang, Panpan Niu, Liu Yize, Tianhua Xu, and Tiegen Liu "Simultaneous low- and high-wavenumber optical fiber CARS probe using vector adjustment and pulse-to-pulse alignment", Proc. SPIE 12813, Asia-Pacific Optical Sensors Conference (APOS 2023), 1281308 (27 September 2023); https://doi.org/10.1117/12.2691713

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