MWIR mercury cadmium telluride detectors for high operating temperatures

L. Pillans; R. M. Ash; L. Hipwood; P. Knowles

doi:10.1117/12.919015

31 May 2012 MWIR mercury cadmium telluride detectors for high operating temperatures

L. Pillans, R. M. Ash, L. Hipwood, P. Knowles

Proceedings Volume 8353, Infrared Technology and Applications XXXVIII; 83532W (2012) https://doi.org/10.1117/12.919015
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

Raising the operating temperature of infrared detectors has benefits in terms of reduced cooler power and increased life and enables an overall reduction in size and weight for handheld applications. With MCT the composition can be tuned to achieve the required wavelength range at a given temperature. Work on detectors operating in the 3-5μm atmospheric transmission window at operating temperatures up to 210K will be described. The influence of limiting factors such as excess noise, radiation shield emission, dark current and injection efficiency will be presented. Packaging aspects will be discussed emphasizing the importance of achieving low cost, weight and power for handheld applications. The impact of the detector design on overall system size and performance is considered with specific attention to time to image, passband and f-number. Finally images will be presented showing performance from a high operating temperature (HOT) camera.

Citation Download Citation

L. Pillans, R. M. Ash, L. Hipwood, and P. Knowles "MWIR mercury cadmium telluride detectors for high operating temperatures", Proc. SPIE 8353, Infrared Technology and Applications XXXVIII, 83532W (31 May 2012); https://doi.org/10.1117/12.919015

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