ADVANCED DESIGN OF SCANNING INFRARED FOCAL PLANE ARRAYS
S. A. Dvoretskii1, A. P. Kovchavtsev1, I. I. Lee1, V. G. Polovinkin1,2, G. Yu. Sidorov1, M. V. Yakushev1
1Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 13, Novosibirsk, 630090 Russia
2Novosibirsk State Technical University, pr. Karla Marksa 20, Novosibirsk, 630073 Russia
Keywords: многорядное ИК ФПУ, фотодиод, локальная квантовая эффективность, точечный источник, пороговая чувствительность, пространственное разрешение, scanning IR FPA, photodiode, local quantum efficiency, point source, threshold sensitivity, spatial resolution
Abstract
Modern designs of time delay and integration (TDI) IR linear scanning focal plane arrays (IR FPAs) are analyzed. Advanced designs of linear IR FPAs with increased sensitivity and spatial resolution are proposed. The analysis is based on Monte-Carlo simulation of the diffusion of photogenerated charge carriers in photodiode arrays based on mercury-cadmium-telluride epitaxial layers taking into account the main photoelectric and design parameters of the detectors and optical system
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