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Proceedings Paper

Computer Simulation Of Focal Plane Array Performance Using Coupled Ray Trace And Carrier Diffusion Models
Author(s): P. E. Thurlow
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Paper Abstract

Use of computer modeling to predict performance and production yield of photodiode arrays has been previously reported. In this earlier work, a narrow, collimated slit source of radiation was assumed to be normally incident on the back side of a generalized photodiode array. An analysis of carrier diffusion in the array led to values for diode quantum efficiency and line spread function, which in turn led to values for absolute signal responsivity, noise equivalent irradiance, and modulation transfer function. A further modeling extension is reported here which brings the model a step closer to real life electro-optical systems. The former idealized radiation input to the focal plane is replaced by a radiation blur circle generated by a ray trace model. The ray trace model simulates radiation spatial, angular, and spectral characteristics of an operational frontend optics module. A methodology for interfacing ray-trace models to carrier diffusion models is considered here, with attention to some radiation transport details which can significantly influence model predictions.

Paper Details

Date Published: 28 October 1985
PDF: 4 pages
Proc. SPIE 0550, Sensor Design Using Computer Tools II, (28 October 1985); doi: 10.1117/12.948850
Show Author Affiliations
P. E. Thurlow, Santa Barbara Research Center (United States)


Published in SPIE Proceedings Vol. 0550:
Sensor Design Using Computer Tools II
John A. Jamieson, Editor(s)

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