Remote sensing of H2O at 0.94 μm

被引：0
|
作者：
Barnes, NP [1 ]
Walsh, BM [1 ]
机构：
[1] NASA, Langley Res Ctr, Hampton, VA 23681 USA
来源：
OPTICAL REMOTE SENSING FOR INDUSTRY AND ENVIRONMENTAL MONITORING | 1998年 / 3504卷
关键词：
H2O remote sensing; 0.946 mu m Nd : YAG; compositional tuning;
D O I：
10.1117/12.319567
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A H2O vapor remote sensing instrument which could operate in the 0.94 mu m region would have several highly desirable characteristics. Among the characteristics are access to absorption lines with approximately the correct strength and the availability of good detection systems. A good candidate for the laser for such a system is a Nd:garnet laser operating on one of the (4)F(3/)2 to I-4(9/2) transitions. TO make such a system a reality, NASA Langley has investigated compositional tuning to develop a laser at precisely the correct wavelength and methods of improving the efficiency. Both efforts have achieved success. A flashlamp pumped Nd:YAG laser operating at room temperature on the 0.946 mu m transition has achieved a threshold of 12 J and a slope efficiency of 0.009.
引用
收藏
页码：283 / 287
页数：5
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