Multi-Wavelength Spectroscopic Application Using Rapid and Random Wavelength-Tuned Mid-Infrared Light Source
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概要
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We report a rapid and random wavelength-tuned mid-infrared (IR) light source with difference-frequency generation, using an electronically tuned dual-wavelength-oscillated Ti:Al2O3 laser. A tuning range from 5.4 to 8.2 μm is achieved. The wavelength stability of the mid-IR radiation is measured to be less than $\pm 1.1 \times 10^{-3}$ μm, and we realize rapid and random wavelength tuning with the switching speed of 1 ms. Using the light source, the real-time monitoring of acetone vaporization is demonstrated with absorption at 7.33 μm, compared with water with absorption at 6.25 μm. The results show that our mid-IR light source is attractive for multi-wavelength spectroscopic applications.
- 2010-01-25
著者
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Saito Norihito
Solid State Laser For Astronomical Observation Research Team Riken
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Ogawa Takayo
Solid-state Laser For Astronomical Observation Research Team Riken
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Yumoto Masaki
Department Of Physics Graduate School Of Science Tokyo University Of Science
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Yamashita Masafumi
Department Of Computer Science And Communication Engineering Kyushu University
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Wada Satoshi
Department Of Applied Physics Faculty Of Engineering Osaka City University
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Maeda Yasuhiro
Department Of Applied Physics Tokyo Institute Of Technology
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Ogawa Takayo
Solid-State Optical Science Research Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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Yumoto Masaki
Department of Physics, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
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Yamashita Masafumi
Department of Physics, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
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Wada Satoshi
Department of Applied Chemistry, Tokyo University of Agriculture & Technology,
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Saito Norihito
Solid-State Optical Science Research Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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MAEDA Yasuhiro
Department of Agricultural Chemistry, College of Agriculture, University of Osaka Prefecture
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Maeda Yasuhiro
Department of Physics, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
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