Ultraviolet Raman lidar for high-accuracy profiling of aerosol extinction coefficient

被引：10

作者：

Gao, Fei ^{[1
]}

Song, Xiaoquan ^{[2
]}

Wang, Yufeng ^{[1
]}

Zhou, Yi ^{[1
]}

Hua, Dengxin ^{[1
]}

机构：

[1] Xian Univ Technol, Sch Mech & Precis Instrument Engn, Xian 710048, Peoples R China

[2] Ocean Univ China, Ocean Remote Sensing Inst, Qingdao 266003, Peoples R China

来源：

CHINESE OPTICS LETTERS | 2009年 / 7卷 / 02期

基金：

中国国家自然科学基金;

关键词：

TEMPERATURE; BACKSCATTER;

D O I：

10.3788/COL20090702.0095

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An ultraviolet (UV) Raman lidar system at 354.7 nm has been developed for accurately measuring the aerosol extiniction profiles. A spectroscopic filter combining a, high-spectral-resolution grating with two narrowband mirrors is used to separate the vibrational Raman scattering signal of N(2) at a central wavelength of 386.7 nm and the elastic scattering signal at 354.7 nm. The aerosol extinction is derived front the Raman scattering of N(2) and the elastic scattering by the use of Raman method and Klett method, respectively. The derived results of aerosol extinction are used to compare the difference of two retrieval methods, and the preliminary experiment shows that the Raman lidar system operated in analog detection mode has the capability of measuring aerosol profiles tip to a height, of 3 km with a laser energy of 250 mJ and an integration time of 8 min.

引用

页码：95 / 97

页数：3

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