Injection efficiency of 8- to 14- um hybrid focal plane arrays

Vikram Dhar; Vishnu Gopal; R. K. Bhan; K. C. Chhabra

doi:10.1117/12.56046

1 January 1992 Injection efficiency of 8- to 14- μm hybrid focal plane arrays

Vikram Dhar, Vishnu Gopal, R. K. Bhan, K. C. Chhabra

Author Affiliations +

Optical Engineering, Vol. 31, Issue 1, (January 1992). https://doi.org/10.1117/12.56046

Abstract

The injection efficiency of an 8- to 14-μm hybrid IR/CCD FPA is calculated from a transcendental equation involving the detector, CCD input currents, and the detector impedance R_d at the operating point. The latter has been varied either by changing the composition of x in the Hg_1-x Cd_x Te detector or by changing the tunneling current while x is kept constant. Calculations were carried out for both weak and strong inversion cases of the input MOSFET of the CCD. It is argued that for the 8- to 14-μm region, since the detector currents are high, operation of the input of the CCD in the strong inversion regime seems more reasonable.

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Vikram Dhar, Vishnu Gopal, R. K. Bhan, and K. C. Chhabra "Injection efficiency of 8- to 14- μm hybrid focal plane arrays," Optical Engineering 31(1), (1 January 1992). https://doi.org/10.1117/12.56046

Published: 1 January 1992

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