摘要
综述了InAs/GaSbⅡ类超晶格多色红外探测器的研究进展。详细阐述了其性能影响因素,包括能带结构的设计、分子束外延制备工艺、暗电流、量子效率和串扰等。全面介绍了多色红外探测器从双色短/中、短/长、中/中、中/长、长/长以及长/甚长波到三色短/中/长、中/长/甚长波红外探测器性能的研究,分析了各探测器在不同波段的性能表现及存在问题。针对多色红外探测器性能的影响因素,尤其是串音方面,总结了各研究团队的尝试与效果,并提出未来解决策略。
This paper presents an in-depth and comprehensive review of the latest research advancements in InAs/GaSbⅡ-Type superlattice-based multicolor infrared detectors,which are pivotal to a wide range of applications,including night vision,thermal imaging,and remote sensing.The core performance parameters of these detectors are intricately linked to several critical factors,including the meticulous design of their band structure,which governs the electronic transitions and,consequently,the spectral response characteristics.This design aspect is crucial for optimizing the detectors'sensitivity and selectivity across different infrared wavelength bands.The molecular beam epitaxy(MBE)fabrication process is another cornerstone in the development of high-performance multicolor infrared detectors.Precise control over layer thickness,composition,and interface quality during MBE growth is essential for achieving low dark current,high quantum efficiency,and minimal defects,all of which are vital for enhancing the detectors'overall performance.Beyond these foundational elements,the paper also delves into the nuanced aspects of detector performance,such as the management of dark current,which can obscure weak signals,and the optimization of quantum efficiency,which directly impacts the detectors'signal-to-noise ratio.Additionally,the issue of crosstalk between adjacent detector pixels or spectral channels emerges as a significant challenge,particularly in multicolor configurations,where it can degrade spatial resolution and spectral purity.The review systematically examines the performance landscape of multicolor infrared detectors,encompassing dual-band(short/medium,short/long,medium/medium,medium/long,long/long,and long/very long waveband)to tricolor(short/medium/long,medium/long/very long waveband)variants.It critically analyzes the strengths and limitations of these detectors across different spectral regimes and highlights ongoing research efforts aimed at mitigating crosstalk and enhancing overall performance.Finally,the paper proposes forward-looking strategies and future research directions to further advance the field of multicolor infrared detection.
作者
尉鹏举
刘铭
闫勇
金姝沛
戴子介
王晓华
胡雨农
周朋
李菁桢
喻松林
张永哲
YU Pengju;LIU Ming;YAN Yong;JIN Shupei;DAI Zijie;WANG Xiaohua;HU Yunong;ZHOU Peng;LI Jingzhen;YU Songlin;ZHANG Yongzhe(School of Information Science and Technology,Beijing University of Technology,Beijing 100124,China;North China Research Institute of Electro Optics,Beijing 100015,China)
出处
《真空与低温》
2025年第3期377-390,共14页
Vacuum and Cryogenics
基金
国家自然科学基金委青年项目(62305010)
北京市博士后基金项目(Q6043001202101)。
关键词
Ⅱ类超晶格
多色探测器
串音
量子效率
II-type superlattice
multicolor detector
crosstalk
quantum efficiency
