Background-limited terahertz quantum-well photodetector
Background-limited terahertz quantum-well photodetector
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DOI：
10.1063/1.1947377
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发表时间：
2005-06-06
影响因子：
4
通讯作者：
Wasilewski, ZR
中科院分区：
文献类型：
--
作者：
Luo, H;Liu, HC;Wasilewski, ZR
我们报告了具有背景限制红外性能（BLIP）的太赫兹量子阱光电探测器。通过采用厚势垒减少井间隧道效应，改善了器件的暗电流特性。观察了针对不同波长设计的所有样品（总共三个）的 BLIP 操作。 BLIP 温度分别达到 17、13 和 12 K，峰值检测频率分别为 9.7 THz (31 μm)、5.4 THz (56 μm) 和 3.2 THz (93 μm)。 (c) 2005 年美国物理研究所。
We report terahertz quantum-well photodetectors with background-limited infrared performance (BLIP). The device dark current characteristics were improved by employing thick barriers to reduce interwell tunneling. BLIP operations were observed for all samples (three in total) designed for different wavelengths. BLIP temperatures of 17, 13, and 12 K were achieved for peak detection frequencies at 9.7 THz (31 mu m), 5.4 THz (56 mu m), and 3.2 THz (93 mu m), respectively. (c) 2005 American Institute of Physics.