Wang J Q, Richards P L, Beeman J W, Haller E E
Appl Opt. 1987 Nov 15;26(22):4767-71. doi: 10.1364/AO.26.004767.
An optimized leaf-spring apparatus for applying uniaxial stress to a Ge:Ga far-infrared photoconductor has been designed and tested. This design has significant advantages for space applications which require high quantum efficiency and stable operation over long periods of time. The important features include adequate spring deflection with relatively small overall size, torque-free stress, easy measurement of applied stress, and a detector configuration with high responsivity. One-dimensional arrays of stressed photoconductors can be constructed using this design. A peak responsivity of 38 A/W is achieved in a detector with a cutoff wavelength of 200 microm, which was operated at a temperature of 2.0 K and a bias voltage equal to one half of the breakdown voltage.
已设计并测试了一种用于向锗镓远红外光电导体施加单轴应力的优化板簧装置。这种设计对于需要高量子效率和长时间稳定运行的空间应用具有显著优势。其重要特性包括在整体尺寸相对较小的情况下有足够的弹簧挠度、无扭矩应力、施加应力易于测量以及具有高响应度的探测器配置。使用这种设计可以构建受应力光电导体的一维阵列。在截止波长为200微米的探测器中实现了38 A/W的峰值响应度，该探测器在2.0 K的温度和等于击穿电压一半的偏置电压下运行。
