中国海洋湖沼学报(英文版)2002，Vol.20Issue(3)：197-201,5.
SELECTION OF BRILLOUIN SHIFT DISCRIMINATOR FOR BRILLOUIN LIDAR
SELECTION OF BRILLOUIN SHIFT DISCRIMINATOR FOR BRILLOUIN LIDAR
摘要
Abstract
For the measurement of vertical profiles of sound speed in the sea using laser excited Brillouin scattering, a high-resolution measurement of Brillouin frequency shift is required. In this work, a molecular absorption cell was selec ted as the frequency shift discriminator and several kinds of absorption gases were tri ed. It was found that the strong line (#1095) of 127I2 at 18783.3297 cm-1 and two absorption lines of 129I2 located at the two sides of the #1095 line of 127 I2 could be used as frequency shift discriminator to detect the changes of the Brillouin frequency s hift. This selection is the best one within the range from 532.0131 nm to 532.5154 nm. But it is not perfect and there is a lot of work to do before its practical application.关键词
Brillouin scattering/lidar/molecular absorption cellKey words
Brillouin scattering/lidar/molecular absorption cell分类
海洋科学引用本文复制引用
吴东,刘智深..SELECTION OF BRILLOUIN SHIFT DISCRIMINATOR FOR BRILLOUIN LIDAR[J].中国海洋湖沼学报(英文版),2002,20(3):197-201,5.基金项目
This project No.49886001 supported by NSFC, and also by the Research Fund for the Higher Education Doctoral Program (No.97042303). （No.97042303）
