Spectroscopy processing for the NO measurement based on the room-temperature pulsed quantum cascade laser

被引：5

作者：

Tang Yuan-Yuan ^{[1
]}

Liu Wen-Qing ^{[1
]}

Kan Rui-Feng ^{[1
]}

Zhang Yu-Jun ^{[1
]}

Liu Jian-Guo ^{[1
]}

Xu Zhen-Yu ^{[1
]}

Shu Xiao-Wen ^{[1
]}

Zhang Shuai ^{[1
]}

He Ying ^{[1
]}

Geng Hui ^{[1
]}

Cui Yi-Ben ^{[1
]}

机构：

[1] Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China

来源：

ACTA PHYSICA SINICA | 2010年 / 59卷 / 04期

基金：

中国国家自然科学基金;

关键词：

quantum cascade laser; mid-infrared; polynomial fitting; scan integration; ABSORPTION;

D O I：

10.7498/aps.59.2364

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The in spectroscopy based on room-temperature pulsed quantum cascade( QC) lasers was introduced. With a room-temperature pulsed QC laser centered at 1904 cm(-1), the sample NO gas has been detected. The least-squared algorithm of baseline fitting and concentration retrieving method were introduced for the single line spectroscopy detection, and the gas concentration can be calculated with scan integration and the corresponding values from HITRAN04 database by direct-absorption technique, without calibration. The detection limit was obtained by analyzing the residual of the absorption spectroscopy as 3 4 x 10(-6) m.

引用

页码：2364 / 2368

页数：5

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