Temperature and pulse-duration dependence of second-harmonic generation in CdGeAs2 |
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| Authors: | Zakel Andrew Blackshire James L Schunemann Peter G Setzler Scott D Goldstein Jonathan Guha Shekhar |
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| Affiliation: | U.S. Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright Patterson Air Force Base, Dayton, Ohio 45433-7702, USA. |
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| Abstract: | A detailed investigation of frequency doubling of a transversely excited atmospheric CO2 laser operating at 9.55 microm with a CdGeAs2 crystal was carried out. The temperature of the crystal was varied between 80 and 295 K to maximize the frequency-doubled energy. The temporal shape of the generated beam at 4.775 microm was monitored to calculate its peak power. High values of midwave infrared pulse energy (16.65 mJ) and peak power (92 kW) were obtained, which can be of potential use in lidar systems. |
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