Chirped laser dispersion spectroscopy for spectroscopic chemical sensing with simultaneous range detection

Andreas Hangauer, Yifeng Chen, Gerard Wysocki

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)198-201
Number of pages4
JournalOptics Letters
Volume46
Issue number2
DOIs
StatePublished - Jan 15 2021

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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