Sensitivity of an IR photodiode array with signal integration by thermoresistors

Pavel S. Serebrennikov

doi:10.1117/12.350894

10 June 1999 Sensitivity of an IR photodiode array with signal integration by thermoresistors

Pavel S. Serebrennikov

Proceedings Volume 3819, International Conference on Photoelectronics and Night Vision Devices; (1999) https://doi.org/10.1117/12.350894
Event: International Conference on Photoelectronics and Night Vision Devices, 1998, Moscow, Russian Federation

Abstract

It is shown that a choice of the thermoresistor thermal time constant of the order of frame time is not sufficient condition for achieving the signal to noise ratio which corresponds to the integration time of the order of frame time. Conditions are found when one get improving signal to noise ratio approximately (root)M times in comparison with the case without signal integration (M number of pixels in the array). Sensitivity (NEP for a monochromatic signal and NETD) of IR photodiode array with signal integration by the thermoresistors are found for state-of-the-art parameters. Comparison is made of this characteristics with characteristics of analogous array without signal integration, with integration by capacitor, with characteristics of bolometric array.

Citation Download Citation

Pavel S. Serebrennikov "Sensitivity of an IR photodiode array with signal integration by thermoresistors", Proc. SPIE 3819, International Conference on Photoelectronics and Night Vision Devices, (10 June 1999); https://doi.org/10.1117/12.350894

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