基于人工微纳光学结构调控的非制冷PbSe中波红外光子型探测器研究

围绕项目指南“基于人工微纳光学结构的非制冷中长波红外探测器光场调控机理”，开展非制冷PbSe中波红外探测器的研究，在我们已经实现的室温工作、高灵敏PbSe光子型中波红外探测器的基础上，通过集成微纳结构表面等离激元和光子晶体等人工微纳结构调控中波红外光场与PbSe有源区电子-空穴的相互作用，增强局部场强和PbSe吸收系数，提高信噪比，研制出室温工作、快速响应和高灵敏的光子型中波红外PbSe探测器，室温测试条件下PbSe单元器件探测率大于1×10E10cm·Hz1/2/W；研制32x32像素红外焦平面器件，响应时间小于20微秒，盲元率低于5%。研究PbSe FPA中波红外的成像验证工作，为实现中高面阵密度和小像元PbSe 中波红外FPA探测器芯片、满足未来航天技术对中波红外探测的型号需求奠定坚实基础。

By focusing on the project guide "light field control mechanism of the uncooled middle-and long infrared detectors based on the artificial micro-nano optical structure", We'll carry out the research work of non-cooling PbSe middle-infrared detectors. On the basis of our achievement of room temperature operation and high sensitivity PbSe photonic type middle infrared detectors, we'll enhance the local field intensity and PbSe absorption coefficient, improve the signal to noise ratio, and develop room temperature operation, fast response and highly sensitive photonic type PbSe infrared detectors by regulating the interaction between the electrons and holes in PbSe active region with the surface plasmons and the middle infrared light field by intergrating of artificial micro-nano-structure SPs and photonic crystals. The detectivity of PbSe detector units is to be over 1x10E10cm Hz1 / 2/W at room temperature. 32×32 pixel infrared focal plane array will be developed with the response time less than 20 microseconds and the blind pixel rate less than 5%. The confirmatory test study of the middle infrared imaging of PbSe FPA will be performed, which will provide a solid foundation for the realization of medium and high array density and small pixel PbSe middle infrared FPA detector chips to meet the model requirements of middle infrared detection for the future aerospace technology.