期刊
APPLIED PHYSICS LETTERS
卷 98, 期 13, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3572337
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资金
- U.S. National Science Foundation [ECCS-0925054]
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [0925054] Funding Source: National Science Foundation
We investigate power scalability and frequency agility of a terahertz (THz) source by mixing two frequencies generated by solid-state lasers in a nonlinear crystal. They are made possible by introducing two solid-state laser crystals sharing the same Q switch and output coupler with the same laser beams decoupled to each other by a polarizer. Following the optimization, we have improved the THz output power nearly fivefold at 1.64 THz. By replacing one of the neodymium-doped lithium yttrium fluoride crystals with a neodymium-doped yttrium aluminum garnet crystal, we have produced 2.1 mu W at 2.98 THz. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3572337]
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