Theoretical Study on the Gain and Tuning Characteristics of Miniature Optically Pumped NH3 Submillimeter Laser |
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Authors: | Jiayin Qin and Huimin Zhao |
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Institution: | (1) State Key Laboratory of Ultrafast Laser Spectroscopy and Department of Electronics, Zhongshan University, Guangzhou, 510275, People's Republic of China |
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Abstract: | The gain and the tuning characteristics of miniature optically pumped super-radiant NH3 submillimeter-wave gas laser have been studied theoretically based on the quantum density matrix equations. The density matrix equations of three-level quantum system have been solved, and the gain and the output density versus different frequency detuning of submillimeter laser and infrared pumping laser have been calculated respectively by means of iteration method. The characteristic curves corresponding to ideal monochromatic IR pumping model and broadened IR pumping model have been obtained. Meanwhile, the tuning and the nonlinear properties of the system have been revealed. |
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Keywords: | submillimeter wave far-infrared laser optically pumped laser tunable laser Stark effect |
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