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Proceedings Paper

Potentialities of gaseous biomarkers detection against the main atmospheric components with gas analyzer based on CO2 laser
Author(s): O. Yu. Nikiforova; I. V. Ptashnik
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Paper Abstract

Potentialities of detection of minor gases characterizing the biosystem-atmosphere gas exchange, such as C2H4, N2O, NH3, H2O2, using a gas-analyzer based on waveguide CO2 laser with discrete frequency tuning are studied numerically. The measured signal is recorded over the whole laser frequency scan for 9-μm or 10-μm transitions, i.e. for 25-30 generation lines. An effect of interference of the main gaseous atmospheric components H2O and CO2 on the minor gas detection limit and the uncertainty in the retrieved concentration is analyzed. Absorption coefficients of atmospheric gases at CO2 laser lines are calculated using the HITRAN-2004 spectral database and the CKD water vapor continuum model. Aerosol effect is not taken into account.

Paper Details

Date Published: 1 November 2006
PDF: 7 pages
Proc. SPIE 6522, Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics, 652206 (1 November 2006); doi: 10.1117/12.722542
Show Author Affiliations
O. Yu. Nikiforova, Institute of Atmospheric Optics (Russia)
I. V. Ptashnik, Institute of Atmospheric Optics (Russia)


Published in SPIE Proceedings Vol. 6522:
Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics

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