Paper
2 March 2020 Hollow-core fiber enhanced CW CARS of gases
Dongsheng Xiong, Yusi Bai, Xinbing Wang, Duluo Zuo
Author Affiliations +
Abstract
CW (continuous wave) coherent anti-Stoke Raman spectroscopy (CARS) of gases using a hollow-core photonic crystal fiber (HC-PCF) is demonstrated with gaseous CO2 as an example. Raman transition is pumped by a tunable dye laser. The seeding stokes light is provided by a home-made ECDL. Both lasers operate in single longitudinal mode. The output radiation from the fiber is filtered and coupled into an imaging spectrometer. Anti-stokes signal is observed with 10 mW pump power and 1 mW stokes power. The peak anti-Stokes signal of ν1 band of 6 atm CO2 is 59000 CCD counts with the exposure time set to 5 ms. The v1 and 2v2 components of the fermi dyad of CO2 is resolved.
© (2020) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Dongsheng Xiong, Yusi Bai, Xinbing Wang, and Duluo Zuo "Hollow-core fiber enhanced CW CARS of gases", Proc. SPIE 11264, Nonlinear Frequency Generation and Conversion: Materials and Devices XIX, 112641K (2 March 2020); https://doi.org/10.1117/12.2545369
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Raman spectroscopy

Carbon monoxide

Dye lasers

Spectroscopy

Gases

Charge-coupled devices

Phase matching

Back to Top