Remote mid-infrared sensing using chirped laser dispersion spectroscopy

Michal Nikodem, Clinton Smith, Damien Weidmann, Gerard Wysocki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

A new spectroscopic technique for remote molecular detection is presented. Chirped Laser Dispersion Spectroscopy (CLaDS) uses a two-color dynamic interferometric heterodyne detection to measure optical dispersion caused by molecular transitions. The dispersion sensing is based on measurement of instantaneous frequency of an optical heterodyne beatnote which provides high immunity to optical power fluctuations. Thus CLaDS is well suited to long distance remote sensing and open-path monitoring. In this work we present CLaDS experimental setup for remote sensing of nitric oxide using 5.2 μm quantum cascade laser. System performance as well as advantages and limitations are discussed.

Original languageEnglish (US)
Title of host publicationAdvanced Environmental, Chemical, and Biological Sensing Technologies VIII
DOIs
StatePublished - Sep 19 2011
EventAdvanced Environmental, Chemical, and Biological Sensing Technologies VIII - Orlando, FL, United States
Duration: Apr 25 2011Apr 26 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8024
ISSN (Print)0277-786X

Other

OtherAdvanced Environmental, Chemical, and Biological Sensing Technologies VIII
CountryUnited States
CityOrlando, FL
Period4/25/114/26/11

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Keywords

  • CLaDS
  • Dispersion spectroscopy
  • Gas sensing
  • Mid-infrared spectroscopy
  • Nitric oxide
  • Optical heterodyning
  • Quantum cascade laser
  • Spectroscopy

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  • Cite this

    Nikodem, M., Smith, C., Weidmann, D., & Wysocki, G. (2011). Remote mid-infrared sensing using chirped laser dispersion spectroscopy. In Advanced Environmental, Chemical, and Biological Sensing Technologies VIII [80240F] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8024). https://doi.org/10.1117/12.883598