介绍了国内外双色红外探测器的发展现状,并报道了中国电子科技集团公司第十一研究所（以下简称“中电十一所”）自行研制的像元间距为30 m的Si基320×256短/中波双色红外探测器的性能。在77 K测试条件下,短波和中波两个波段的盲元率分别为0.88%和1.47%,平均峰值探测率分别为2.21×1012 cm·Hz1/2·W-1和2.13×1011 cm·Hz1/2·W-1,后截止波长分别为3.129m和 5.285 m,且短波向中波波段的光谱串音为1.38%,中波向短波波段的光谱串音为2.82%。同时,该探测器在双波段具有较好的成像效果,为后续更大面阵、更佳性能的多波段探测器研究提供了基础。

The development of double-color detector at home and abroad is introduced. And the performance of the Si-based 320×256 SW/MW double-color infrared detector developed by the unit is reported. Under the test condition of 77 K, the blind element rates of the short wave(SW)and medium wave (MW)bands are 0.88% and 1.47% respectively. The average peak detection rate are 2.21×1012 cm·Hz1/2·W -1and 2.13×1011 cm·Hz1/2·W -1 respectively. The back cutoff wavelengths are 3.129 m and 5.285 m respectively. The spectral crosstalk from SW to MW band is 1.38%, the crosstalk from MW to SW band is 2.82%. At the same time, the detector has good imaging results in the dual-band, which provides a foundation for further research on multi-band detectors with larger array and better performance.