Sensitive Detection of CO<sub>2</sub> Molecule Using Near Infrared Diode Laser Absorption Spectroscopy

[in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]

Acta Optica Sinica, Volume. 23, Issue 5, 609(2003)

Sensitive Detection of CO₂ Molecule Using Near Infrared Diode Laser Absorption Spectroscopy

[in Chinese]^*, [in Chinese], [in Chinese], [in Chinese], and [in Chinese]

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[in Chinese]

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The initial observation of CO 2 absorption at 1.57 μm near-infrared tunable diode laser wavelength modulation spectroscopy (WMS) combined with second harmonic detection reported. A minimum detectable absorption of 8.6×10 -5 (signal-noise-ratio is 2) was achieved, it corresponds to 500×10 -6 detection sensitivity.

Keywords

high sensitivity detection second harmonic wavelength modulation spectroscopy

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[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Sensitive Detection of CO₂ Molecule Using Near Infrared Diode Laser Absorption Spectroscopy[J]. Acta Optica Sinica, 2003, 23(5): 609

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Paper Information

Category: Spectroscopy

Received: Mar. 29, 2002

Accepted: --

Published Online: Jun. 27, 2006

The Author Email: (xmgao@aiofm.ac.cn)

DOI:

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology