| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 735665 | Optics and Lasers in Engineering | 2007 | 4 Pages |
Abstract
A mid-infrared spectrometer operating in the range from 3.42 to 4.78μm based on difference-frequency mixing of a tunable Ti:Sapphire laser and a diode-pumped monolithic Nd:YAG laser in periodically poled LiNbO3 (PPLN) crystals was developed. A system line width of about 36 MHz was obtained. An energy conversion efficiency of 0.6 mW/W2 was obtained at 3.70μm. The direct absorption spectra of pure methane and pure carbon dioxide samples were measured to test the performance of the spectrometer.
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Authors
Lunhua Deng, Ling Han, Wanguo Liang, Zhensong Cao, Changqing Xu, Weijun Zhang, Zhiben Gong, Xiaoming Gao,