基于微悬臂梁辐射压力传感器的太赫兹和红外非制冷探测器
Terahertz and Infrared Uncooled Detector Based on a Microcantilever as a Radiation Pressure Sensor
摘要：
我们认为，远红外（太赫兹），室温探测器的基础上的微悬臂梁传感器的辐射压力。该系统在远红外（太赫兹）光谱区域中具有比现有非制冷探测器高得多的灵敏度。灵敏度的显著提高是由于非吸收检测方法和高质量光学微腔的结合。我们的理论分析的探测器的灵敏度和数值模拟表明，窄带外差探测器的带宽为30 MHz的最小可测量的强度由三个数量级小于传统的非制冷探测器。在宽带探测器的情况下，噪声等效温差（NETD）为7.6 mK，这是显着小于传统的非制冷热探测器。
英文摘要：
We consider a far infrared (terahertz), room-temperature detector based on a microcantilever sensor of the radiation pressure. This system has a significantly higher sensitivity than existing uncooled detectors in the far infrared (terahertz) spectral region. The significant enhancement of sensitivity is due the combination non-absorption detection method and high quality optical microcavity. Our theoretical analysis of the detector sensitivity and numerical simulations demonstrate that the narrowband heterodyne detector with the band width 30 MHz has a minimal measurable intensity by three orders of magnitude less than conventional uncooled detectors. In the case of the broadband detector, the noise equivalent temperature difference (NETD) is 7.6 mK, which is significantly smaller than for conventional uncooled thermal detectors.
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