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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 24 — Aug. 20, 2004
  • pp: 4711–4717

Ground-Based Imaging Differential Optical Absorption Spectroscopy of Atmospheric Gases

Falko Lohberger, Gerd Hönninger, and Ulrich Platt  »View Author Affiliations


Applied Optics, Vol. 43, Issue 24, pp. 4711-4717 (2004)
http://dx.doi.org/10.1364/AO.43.004711


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Abstract

We describe a compact remote-sensing instrument that permits spatially resolved mapping of atmospheric trace gases by passive differential optical absorption spectroscopy (DOAS) and present our first applications of imaging of the nitrogen dioxide contents of the exhaust plumes of two industrial emitters. DOAS permits the identification and quantification of various gases, e.g., NO<sub>2</sub>, SO<sub>2</sub>, and CH<sub>2</sub>O, from their specific narrowband (differential) absorption structures with high selectivity and sensitivity. With scattered sunlight as the light source, DOAS is used with an imaging spectrometer that is simultaneously acquiring spectral information on the incident light in one spatial dimension (column). The second spatial dimension is scanned by a moving mirror.

© 2004 Optical Society of America

OCIS Codes
(010.0010) Atmospheric and oceanic optics : Atmospheric and oceanic optics
(010.7030) Atmospheric and oceanic optics : Troposphere
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(280.1120) Remote sensing and sensors : Air pollution monitoring

Citation
Falko Lohberger, Gerd Hönninger, and Ulrich Platt, "Ground-Based Imaging Differential Optical Absorption Spectroscopy of Atmospheric Gases," Appl. Opt. 43, 4711-4717 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-24-4711

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