Abstract
A fiber laser system for standoff detection of chemical and biological species by coherent anti-Stokes Raman scattering is presented. The system is based on an ytterbium fiber laser and a hollow-core photonic crystal fiber for generation of broadband pump/Stokes pulses. High-resolution Raman spectra encompassing the fingerprint region ($600 - 1600\;{{\rm cm}^{- 1}}$) are obtained for toluene, and two simulants of chemical and biological warfare agents, specifically dimethyl methylphosphonate and sodium dipicolinate. The system is operated at standoff distances of 2 m and integration times of 8 ms. The fiber technology makes the approach suitable for implementation as a compact standoff detection and identification system.
© 2020 Optical Society of America
Full Article | PDF ArticleMore Like This
Davide Gatti, Marco Lamperti, Attilio Zilli, Francesco Canella, Giulio Cerullo, Gianluca Galzerano, Paolo Laporta, and Nicola Coluccelli
Opt. Express 30(9) 15376-15387 (2022)
Yukun Qin, Benjamin Cromey, Orkhongua Batjargal, and Khanh Kieu
Opt. Lett. 46(1) 146-149 (2021)
Tao Wu, Kun Chen, Haoyun Wei, and Yan Li
Opt. Lett. 45(2) 407-410 (2020)