摘要
设计了一种新型的大气遥感探测系统——自光激光雷达，发展了一种雷达模式的宽谱范围长程差分吸收光谱探测方法。介绍了白光激光雷达系统结构和时间分辨光谱探测技术；阐述了飞秒激光在大气中自导光丝传输和产生的超连续白光的特性；利用该自光激光雷达系统对大气中氧气成分在685～694nm和759--769nm范围的长程差分吸收光谱进行了探测，并与Hitran数据库拟合计算的标准值进行比对，结果一致，验证了白光激光雷达遥感探测系统的正确性和实验方法的可行性。
A new atmospheric remote sensing detection system, White-light Lidar, was designed and a d.etection method based on radar mode of long-path differential absorption spectra was developed. The main structure of the White-light Lidar and time-resolved spectrum detecting technology were introduced. The feature of the femtosecond laser pulses propagating for filament formation in atmosphere and white-light supercontinuum were expounded. Using the White-light Lidar system, the long-path dif- ferential absorption spectra of oxygen molecules in the range of 685-694 nm and 759-769 nm were detected. The measured results are in good agreement with the fitted spectra of Hitran database, which indicates the correctness of the remote sensing detection system of White-light Lidar and the feasibility of the experimental method.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2008年第10期1603-1607,共5页
High Power Laser and Particle Beams
基金
国家自然科学基金项目(10475110)
中国科学院科研装备研制和改造项目(Y2004019)
关键词
大气遥感探测
白光激光雷达
时间分辨光谱探测
超连续白光
后向散射增强
Atmospheric remote sensing
White-light Lidar
Time-resolved spectrum detection
White-light supercontinuum
Backscattering enhanced
