Detector and readout performance goals for quantum well and strained layer superlattice focal plane arrays imaging under tactical and strategic backgrounds |
| |
| Authors: | Sumith V Bandara |
| |
| Institution: | 1. School of Electrical & Electronic Engineering, Wuhan Polytechnic University, Wuhan 430023, Hubei, People''s Republic of China;2. Wuhan National Laboratory for Optoelectronics, Wuhan 430074, People''s Republic of China;1. King Abdulaziz University, Faculty of Science, Physics Department, Jeddah, Saudi Arabia;2. Suez Canal University, Faculty of Science, Physics Department, Ismailia, Egypt;3. King Abdulaziz University, Faculty of Science&art, Physics Department, Rabigh, Saudi Arabia;4. Texas State University-San Marcos, Department of Chemistry and Biochemistry, 601 University Dr., San Marcos, TX 78666, USA;1. Division of Endocrinology and Metabolism, Department of Internal Medicine, St. Vincent''s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea;2. Division of Endocrinology and Metabolism, Department of Internal Medicine, Yeouido St. Mary''s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea;3. Division of Cardiology, Department of Internal Medicine, St. Vincent''s Hospital, College of Medicine, The Catholic University of Korea, Republic of Korea;4. Division of Nephrology, Department of Internal Medicine, St. Vincent''s Hospital, College of Medicine, The Catholic University of Korea, Republic of Korea;5. Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA;1. College of Physics, Liaoning University, Shenyang 110036, China;2. School of Computer Science and Technology, Tianjin University, Tianjin 300072, China |
| |
| Abstract: | Advancements in III–V semiconductor based, Quantum-well infrared photodetector (QWIP) and Type-II Strained-Layer Superlattice detector (T2SLS) technologies have yielded highly uniform, large-format long-wavelength infrared (LWIR) QWIP FPAs and high quantum efficiency (QE), small format, LWIR T2SLS FPAs. In this article, we have analyzed the QWIP and T2SLS detector level performance requirements and readout integrated circuit (ROIC) noise levels for several staring array long-wavelength infrared (LWIR) imaging applications at various background levels. As a result of lower absorption QE and less than unity photoconductive gain, QWIP FPAs are appropriate for high background tactical applications. However, if the application restricts the integration time, QWIP FPA performance may be limited by the read noise of the ROIC. Rapid progress in T2SLS detector material has already demonstrated LWIR detectors with sufficient performance for tactical applications and potential for strategic applications. However, significant research is needed to suppress surface leakage currents in order to reproduce performances at pixel levels of T2SLS FPAs. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
