Resolution issues in InSb focal plane array system design

Details Resolution issues in InSb focal plane array system design Resolution issues in InSb focal plane array system design

Jul 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998spie.3379..288d&link_type=abstract

Proc. SPIE Vol. 3379, p. 288-299, Infrared Detectors and Focal Plane Arrays V, Eustace L. Dereniak; Robert E. Sampson; Eds.

Computer Science

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Scientific paper

Developing maximum image performance in an infrared imaging system without exceeding physical design parameters, such as size and weight, leads to system requirements for small and closely spaced detector pixels areas on the focal plane array. Small sensitive areas allow high resolution and close spacing that can result in high spatial sampling rates and the ability to discern objects at long distances. The imaging resolution performance of compact two-dimensional Indium Antimonide (InSb) arrays can be limited by the fact that photo generated carriers can diffuse and be collected by junctions removed from the point of generation. Carrier diffusion can limit resolution in compact sensor packages. This paper quantitatively discusses the effect of carrier diffusion on resolution and the advantages of a reticulated pixel design.

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