Abstract
Low-background tests of a 1 × 32 Si:Bi charge-injection-device (CID) IR detector array were carried out to evaluate its feasibility for space-based astronomical observations. Optimum performance was obtained at a temperature of 11 K. The device showed a peak responsivity of 4.4 A/W, an average noise level of ~670 electrons, and a minimum noise equivalent power of for 1-sec integration time. This sensitivity compares well with that of discrete extrinsic silicon photoconductors. The measured sensitivity, plus the apparent absence of anomalous effects, make extrinsic silicon CID arrays very promising for astronomical applications.
© 1981 Optical Society of America
Full Article | PDF ArticleMore Like This
Mark E. McKelvey, Craig R. McCreight, John H. Goebel, and A. Arlo Reeves
Appl. Opt. 24(16) 2549-2557 (1985)
G. H. Rieke, E. F. Montgomery, M. J. Lebofsky, and P. R. Eisenhardt
Appl. Opt. 20(5) 814-818 (1981)
Alexander S. Zachor and E. Ray Huppi
Appl. Opt. 20(6) 1000-1004 (1981)