Uncooled antenna-coupled terahertz detectors with 22 μs response time based on BiSb/Sb thermocouples
Uncooled antenna-coupled terahertz detectors with 22 μs response time based on BiSb/Sb thermocouples
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DOI：
10.1063/1.4798369
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发表时间：
2013-03
影响因子：
4
通讯作者：
A. K. Huhn;G. Spickermann;A. Ihring;U. Schinkel;H. Meyer;P. Bolívar
中科院分区：
文献类型：
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作者：
A. K. Huhn;G. Spickermann;A. Ihring;U. Schinkel;H. Meyer;P. Bolívar
我们报告的快速太赫兹探测器的基础上天线耦合的BiSb/Sb热电偶在室温下工作。在室温空气中测得热电偶的响应时间为22 μs，在1 kHz调制频率下的噪声等效功率为170 pW/Hz。这些可大规模生产的设备的集成能力，使大规模的检测器阵列的实时太赫兹成像应用。由于快速响应时间，检测器的多路复用可用于减少所需的读出电路。
We report on fast terahertz detectors based on antenna-coupled BiSb/Sb thermoelements operating at room temperature. A response time of the thermocouples as low as 22 μs and a noise equivalent power of 170 pW/Hz at 1 kHz modulation frequency is measured in air at room temperature. The integration capability of these mass producible devices enables large-scale detector arrays for real-time terahertz imaging applications. Due to the fast response time, multiplexing of the detectors can be used to reduce the required readout circuits.