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

39 Scopus citations


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
Issue number11
StatePublished - Jul 2012

All Science Journal Classification (ASJC) codes

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


  • 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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