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Continuous-wave mid-infrared laser sources based on difference frequency generation |
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| Authors: | Weidong Chen Julien Cousin Emmanuelle Poullet Jean Burie Daniel Boucher Xiaoming Gao Markus W Sigrist Frank K Tittel |
| Institution: | 1. Laboratoire de physicochimie de l''atmosphère, UMR CNRS 8101, Université du Littoral Côte d''Opale 189A, Avenue Maurice Schumann, 59140 Dunkerque, France;2. Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, PR China;3. ETH Zürich, Institute for Quantum Electronics, Laser Spectroscopy and Sensing Laboratory, Schafmattstrasse 16, CH-8093 Zürich, Switzerland;4. Rice Quantum Institute, MS 366, Rice University, 6100 Main St., Houston, TX 77005, USA |
| Abstract: | We report on recent developments of widely tunable, continuous-wave (CW) laser sources based on difference-frequency generation (DFG) in nonlinear optical materials. The state-of-the-art of CW DFG technology will be reviewed. Applications of the DFG-based laser source to high-resolution molecular spectroscopy and trace gas detection will be presented. New development trends of DFG will be discussed. To cite this article: W. Chen et al., C. R. Physique 8 (2007). |
| Keywords: | Mid-infrared tunable laser source Difference-frequency generation Phase-matching Laser absorption spectroscopy Trace gas detectionMots-clé s: Source laser accordable dans l'infrarouge moyen Gé né ration de diffé rence de fré quences Accord de phase Spectroscopie d'absorption laser Dé tection de traces de gaz |
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