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Absorption Parameters Measurement of Methane in υ4 Band Utilizing Quantum Cascade Laser Based Sensing System

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Abstract:

This paper represents the line parameter measuring results base on pulsed DFB quantum cascade laser with tunable in the spectral range of 1248-1257 cm-1. The transition is in the υ4 band and P (8) branch which is lying in the line position of 1253.46436 cm-1 based on HITRAN simulation. The calculated line intensity is 1.85×1020 cm-1/cm-2molecule and the pressure broadening parameters in N2 and Ar are 0.061± 0.003 cm-1atm-1 and 0.086 ± 0.007 cm-1atm-1 respectively.

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Periodical:

Applied Mechanics and Materials (Volume 654)

Pages:

258-261

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.654.258

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Online since:

October 2014

Authors:

Ling Fang Wang*

Keywords:

Line Intensity, Methane, Pressure Broadening Parameters, Quantum Cascade Laser

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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