Efficient and widely step-tunable terahertz generation with a dual-wavelength CO2 laser

被引：15

作者：

Lu, Y. ^{[1
]}

Wang, X. ^{[1
]}

Miao, L. ^{[1
]}

Zuo, D. ^{[1
]}

Cheng, Z. ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Optoelect Sci & Engn, Wuhan 430074, Peoples R China

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2011年 / 103卷 / 02期

关键词：

RADIATION SOURCE; GAAS; TECHNOLOGY; GAP;

D O I：

10.1007/s00340-010-4255-8

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Coherent terahertz radiation in a widely step-tunable range of 72.3-2706 mu m (0.11-4.15 THz) has been generated in GaAs crystal by difference-frequency generation using one CO2 laser with dual-wavelength output. The peak power of THz pulse reaches 35 W at the wavelength of 236.3 mu m, which corresponds to a pulse energy of 2.1 mu J. An average power of 10 mu W has been achieved when working repetitively. This efficient terahertz radiation source is more compact and widely tunable than other THz sources pumped by CO2 laser.

引用

页码：387 / 390

页数：4

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