Abstract
Spectroscopic chemical detection requires knowledge or determination of an optical path for accurate quantification of path-integrated concentration of species. Continuous-wave-laser-based spectroscopic systems operating in an open integrated-path remote sensing configuration are usually not equipped for optical path determination. Here we demonstrate a measurement technique capable of simultaneous spectroscopic chemical quantification and range finding. The range-finding functionality is implemented with chirped laser dispersion spectroscopy. The methodology is potentially useful for remote chemical sensing in a hard-target LIDAR configuration and for automatic calibration of gas cells with unknown or varying lengths.
© 2021 Optical Society of America
Full Article | PDF ArticleMore Like This
Yifeng Chen, Michael Soskind, James McSpiritt, Jie Liu, Rui Wang, Nathan Li, Xuehui Guo, Mark A. Zondlo, and Gerard Wysocki
Opt. Lett. 46(13) 3005-3008 (2021)
Xiutao Lou, Yue Wang, and Yongkang Dong
Opt. Lett. 46(23) 5950-5953 (2021)
Neil A. Macleod, Peter G. Huggard, Manju Henry, and Damien Weidmann
Opt. Lett. 47(13) 3139-3142 (2022)