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Photonic sensing of the atmosphere by absorption spectroscopy

  • Xiaojuan Cui
  • , Christophe Lengignon
  • , Wu Tao
  • , Weixiong Zhao
  • , Gerard Wysocki
  • , Eric Fertein
  • , Cécile Coeur
  • , Andy Cassez
  • , Laurence Croize
  • , Weidong Chen
  • , Yingjian Wang
  • , Weijun Zhang
  • , Xiaoming Gao
  • , Wenqing Liu
  • , Yujun Zhang
  • , Fengzhong Dong

Research output: Contribution to journalArticlepeer-review

Abstract

Chemically reactive atmospheric species play a crucial role in tropospheric processes which affect regional air quality and global climate change. Contrary to long-lived species such as greenhouse gases, interference-free accurate and precise concentration assessments of strongly reactive short-lived species represent a real challenge. In this paper, we report on the recent progress in spectroscopic instrumental developments for monitoring of OH, NO 3, HONO and NO 2 by using modern photonic sources (Quantum Cascade Laser, distributed feedback diode laser, light emitting diode) in conjunction with high-sensitivity spectroscopic measurement techniques such as multi-pass cell based long optical path length absorption spectroscopy, wavelength-modulation enhanced off-axis integrated cavity output spectroscopy, Faraday rotation spectroscopy, incoherent broadband cavity enhanced absorption spectroscopy. The main techniques available for routine atmospheric measurements of OH, NO 3 and HONO are overviewed, in comparison with the emerging modern photonic spectroscopy techniques.

Original languageEnglish (US)
Pages (from-to)1300-1316
Number of pages17
JournalJournal of Quantitative Spectroscopy and Radiative Transfer
Volume113
Issue number11
DOIs
StatePublished - Jul 2012

All Science Journal Classification (ASJC) codes

  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy

Keywords

  • Absorption spectroscopy
  • Distributed feedback (DFB) diode laser
  • Hydroxyl free radical (OH)
  • Light emitting diode (LED)
  • Nitrate radical (NO )
  • Nitrogen dioxide (NO )
  • Nitrous acid (HONO)
  • Quantum cascade laser (QCL)

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