期刊
APPLIED PHYSICS LETTERS
卷 113, 期 16, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5043095
关键词
-
资金
- Army Research Office [W911NF-16-C-0128]
- National Science Foundation [PFI:AIR-TT 1701141]
- ConTex program [UTA17-001106]
- Kwanjeong Educational Foundation (KEF) [12AmB06G]
We report terahertz quantum cascade laser (QCL) sources based on intra-cavity difference-frequency generation processed into double-metal waveguides with surface-grating outcouplers. This configuration enables high confinement of the terahertz mode in the device active region and efficient surface extraction of terahertz radiation along the entire length of the waveguide. The devices operate at room temperature at 1.9 THz and produce over 110 mu W of peak power output with the mid-infrared-to-terahertz conversion of 150 mu W/W-2. The results represent at least a factor of 2 improvement in the performance compared to the best Cherenkov difference-frequency generation QCL devices operating below 2 THz. Published by AIP Publishing.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据