Laser heterodyne spectrometer using a liquid nitrogen cooled tunable diode laser for remote measurements of atmospheric O(3) and N(2)O.
Laser heterodyne spectrometer using a liquid nitrogen cooled tunable diode laser for remote measurements of atmospheric O(3) and N(2)O.
复制标题
激光外差光谱仪使用液氮冷却可调谐二极管激光器远程测量大气 O(3) 和 N(2)O。
DOI：
10.1364/ao.29.002722
复制
发表时间：
1990
期刊：
影响因子：
1.9
通讯作者：
T. Ohnuma
中科院分区：
文献类型：
--
作者：
H. Fukunishi;S. Okano;M. Taguchi;T. Ohnuma
A laser heterodyne spectrometer with a tunable diode laser as a local oscillator has been developed for ultrahigh resolution IR spectroscopy of the absorption spectra of trace constituents in the earth's atmosphere. The spectral resolution and SNR of the developed system are 0.0013 cm(-1) and ~500, respectively. This performance is sufficient for retrieving the altitude profile of atmospheric O(3) through an inversion method. The altitude profile of atmospheric N(2)O has been also obtained for the first time with this laser heterodyne technique. The high resolution and high SNR have been accomplished by adopting a tunable diode laser which operates at liquid nitrogen temperature and by developing an effective technique to eliminate the optical feedback of the local oscillator laser beam.
