摘要
利用环形腔掺钛宝石激光自动扫描系统、公里级怀特池系统和信号探测系统，我们对氧分子Ａ带重叠谱线区（１３１６２．８５～１３１６５．３３ｃｍ￣（－１））进行了高分辨吸收光谱测量，给出了８条谱线的线宽、线强的实验值。同时通过对测量数据的分析，首次证明在谱线重叠区，谱线之间的线相干效应不仅影响谱线之间的吸收率，而且同样影响线参数测量值的精度。在０．１ＭＰａ与光程为１ｋｍ时，它对线强、线宽的测量值和透过率的最大影响分别可达８．８％、１６．６％和８．３％。
With a titanium:sapphire ring laser in conjunction with a White cell and signalreceiving system,the high-resolution spectrum of O_2 A-band in line overlapping region(13162.85～13165.33cm￣(-1))has been measured and analysed,obtaining widths and strengths ofeight absorption lines and the first showing that line coupling not only effects on the absorptioncoefficient but also on the measurement accuracy of line-width and line-strength.At 0.1 MPaand 1 km absorption length,the greatest effect of line coupling on measurement value ofline-width and line-strength,and on transimission can reach 8.8%, 16.6%,and 8.3%,respectively.
出处
《强激光与粒子束》
EI
CAS
CSCD
1994年第1期39-44,共6页
High Power Laser and Particle Beams
关键词
线相干效应
谱线宽度
吸收谱
测量
line interference effect, O_2 absorption spectrum,line-strength,line-width.
