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本文介绍了一类新的红外探测器,并提出了样品的实验数据。所用的材料LaF_3是一种电容量随温度指数地变化的离子导体。探测器样品的探测度是根据所测信号电压和入射功率计算的,而热噪声电压是根据所测电阻值计算的。在20赫的调制频率下计算出的探测率为～2×10~6厘米赫~(1/2)瓦~(-1)。表示这种器件的一些参数中,所估计的探测度是与理论预计一致的。理论进一步预示了比样品薄得多的器件的最佳探测度为～10~9厘米赫~(1/2)瓦~(-1)。
This article describes a new class of infrared detectors and presents experimental data for the samples. The material used, LaF_3, is an ionic conductor whose capacitance varies exponentially with temperature. Detector probe detection is based on measured signal voltage and incident power calculation, and thermal noise voltage is calculated based on the measured resistance. The detection rate calculated at 20 Hz modulation frequency is ~ 2 × 10 ~ 6 cm ~ (1/2) W -1. In some parameters representing this device, the estimated probabilities are consistent with the theoretical predictions. The theory further predicts that the best detection of a device much thinner than a sample is ~ 10 ~ 9 cm ~ (1/2) W ~ (-1).