Tunable high-efficient pulsed NH3 terahertz lasers

Zhi-Xian Jiu; Qiang Li; Du-Luo Zuo; Liang Miao; Zu-Hai Cheng

doi:10.1117/12.918313

13 March 2012 Tunable high-efficient pulsed NH₃ terahertz lasers

Zhi-Xian Jiu, Qiang Li, Du-Luo Zuo, Liang Miao, Zu-Hai Cheng

Proceedings Volume 8330, Photonics and Optoelectronics Meetings (POEM) 2011: Laser and Terahertz Science and Technology; 833009 (2012) https://doi.org/10.1117/12.918313
Event: Photonics and Optoelectronics Meetings 2011, 2011, Wuhan, China

Abstract

Experimental studies on a tunable efficient high-efficient pulsed NH₃ terahertz (THz) lasers pumped by TEA CO₂ lasers are presented. When NH₃ is pumped by the different lines with the CO₂ lasers, the generation of different terahertz radiations is discussed. The lines of the CO₂ lasers are 9R(08), 9P(20), 10R(14), 10R(08), and 10R(06). To improve THz laser energy and photon conversion efficiency, different higher power of the CO₂ laser can effectively improve THz laser energy and photon conversion efficiency. When the 9P(20) CO₂ lasers with 9.68 J and 4.12 J pump NH₃, the corresponding energy conversion efficiencies are 0.28% and 0.19%, increasing by a factor of about 1.5. The generation of terahertz radiations with energy as high as 27.29 mJ and 7.73 mJ are obtained, respectively, increasing by a factor of about 3.5. Meanwhile, for 10R(14) line, the energy conversion efficiencies increase to 8.5 times and the energy of THz lasers increase to 32 times.

Citation Download Citation

Zhi-Xian Jiu, Qiang Li, Du-Luo Zuo, Liang Miao, and Zu-Hai Cheng "Tunable high-efficient pulsed NH₃ terahertz lasers", Proc. SPIE 8330, Photonics and Optoelectronics Meetings (POEM) 2011: Laser and Terahertz Science and Technology, 833009 (13 March 2012); https://doi.org/10.1117/12.918313

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