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Review of Scientific Instruments : A frequency-stabilized difference frequency generation laser spectrometer for precise line profile studies in the midinfrared

By Wen-Ping Deng, Bo Gao, Cun-Feng Cheng, Guo-Sheng Cheng, Shui-Ming Hu et al

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Book Id: WPLBN0002169671
Format Type: PDF eBook :
File Size: Serial Publication
Reproduction Date: 1 December 2008

Title: Review of Scientific Instruments : A frequency-stabilized difference frequency generation laser spectrometer for precise line profile studies in the midinfrared  
Author: Wen-Ping Deng, Bo Gao, Cun-Feng Cheng, Guo-Sheng Cheng, Shui-Ming Hu et al
Volume: Issue : December 2008
Language: English
Subject: Science, Physics, Natural Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Review of Scientific Instruments Collection
Historic
Publication Date:
Publisher: American Institute of Physics

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Bo Gao, Cun-Feng Cheng, Guo-Sheng Cheng, Shui-Ming Hu Et A, W. D. (n.d.). Review of Scientific Instruments : A frequency-stabilized difference frequency generation laser spectrometer for precise line profile studies in the midinfrared. Retrieved from http://www.worldjournal.org/


Description
Description: A midinfrared laser spectrometer is built up based on the difference frequency generation (DFG) of a Nd:YAG (yttrium aluminum garnet) laser and a tunable Ti:sapphire (Ti:Sa) laser. Tuning the Ti:Sa laser and operating properly with the periodically poled lithium niobate crystal, the DFG emission is tunable in the spectral range of 2.3–5.0 μm. The 1064 nm Nd:YAG laser frequency is stabilized to the 10−6 cm−1 level on a Doppler-broadened I2 absorption line at 532 nm. As a result, the DFG emission frequency is stabilized within 1×10−4 cm−1. The measurement of an absorption line of CH4 near 3 μm demonstrates that the DFG spectrometer is very suitable for the molecular absorption line profile studies in the midinfrared region.

 
 


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