TERAHERTZ QUANTUM CASCADE LASERS AND VIDEO-RATE THZ IMAGING

被引：0
|
作者：
Hu, Qing [1 ]
机构：
[1] MIT, Dept EECS, Cambridge, MA 02139 USA
来源：
PROCEEDINGS OF TERA 2008 INTERNATIONAL WORKSHOP THZ RADIATION: BASIC RESEARCH AND APPLICATIONS | 2008年
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中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
Based on a robust THz gain medium that rapidly depopulates the lower state using resonant LO-phonons and a novel metal-metal waveguide structure for mode confinement, we have developed THz quantumcascade lasers with many performance records. These include but not limited to: pulsed operating temperature of similar to 170 K, the highest CW operating temperature of 117 K, long wavelength of 207 mu m, and the highest output power levels of similar to 250 mW. Using these lasers and a 320x240 pixel focal-plane array camera, real-time THz imaging is performed at a video rate of 20 frames/second.
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页码：1 / 2
页数：2
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