Abstract

The invention discloses a calculation method for a response spectrum of a mercury cadmium telluride infrared focal plane detector, and the method mainly comprises the propagation of incident light in the mercury cadmium telluride infrared focal plane detector, the transportation of carriers in a mercury cadmium telluride absorption layer, and the comprehensive design of the surface state composite model of the mercury cadmium telluride absorption layer and the response spectrum. The designed response spectral curve is consistent with the actual test results in the interference fringes and the decrease in quantum efficiency in the short-wave infrared region. This design method is of great significance for the response spectrum optimization of the mercury cadmium telluride infrared focal plane detector.

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