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11 August 2011 Terahertz and mid-infrared tunable source based on difference frequency generation in GaSe crystal
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Abstract
We developed a narrow line width terahertz and mid-infrared source based on difference frequency generation(DFG) in GaSe crystal. The source could be easily continuous-tuned in a terahertz region of 68.1-1386 μm (0.22-4.4 THz) and a mid-infrared region of 16.1-26.5 m without altering any component. The maximal peak power of terahertz waves is 9.1 W at 143 μm (2.1 THz), which corresponds to a power conversion efficiency of 2.8~10-5. Using a FTIR spectrometer, we verified the wavelength and the line width of the source.
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Jin-xing Lu, Bing-bing Wang, Jing-guo Huang, Zhi-ming Huang, and Xue-ming Shen "Terahertz and mid-infrared tunable source based on difference frequency generation in GaSe crystal", Proc. SPIE 8195, International Symposium on Photoelectronic Detection and Imaging 2011: Terahertz Wave Technologies and Applications, 819513 (11 August 2011); https://doi.org/10.1117/12.900744
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