256 x 256 pixel InSb FPA for SIRTF and other astronomical applications

Jeffrey D. Biggs; Michael A. Blessinger; Marie L. Louderback

doi:10.1117/12.158721

20 October 1993 256 x 256 pixel InSb FPA for SIRTF and other astronomical applications

Jeffrey D. Biggs, Michael A. Blessinger, Marie L. Louderback

Proceedings Volume 1946, Infrared Detectors and Instrumentation; (1993) https://doi.org/10.1117/12.158721
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

As part of the NASA Space Infrared Telescope Facility (SIRTF), a low noise multiplexer has been developed. The hybridization of this multiplexer to a high quality indium antimonide (InSb) photodiode array has resulted in a MWIR detector of outstanding performance. The multiplexer is made of a 256 X 256 array of source follower amplifiers on a 30 micron square pitch. Random access binary decoders are used to access each pixel of the array, allowing any read-out scheme to be implemented. Dark current has been measured at temperatures ranging from 4 K to 77 K. Generation recombination currents dominate above 45 K. With 100 mV of reverse bias applied, less than 3 X 10^-17 A is typical below 50 K with 8 X 10^-19 A (5 electrons/second) at 4 K. Under the same conditions 0.25 pA was measured at 77 K. Read noise has been measured as low as 186 electrons using non-correlated techniques. Detector quantum efficiency is 50 to 80 percent through the entire wavelength band of 1 to 5 micrometers .

Citation Download Citation

Jeffrey D. Biggs, Michael A. Blessinger, and Marie L. Louderback "256 x 256 pixel InSb FPA for SIRTF and other astronomical applications", Proc. SPIE 1946, Infrared Detectors and Instrumentation, (20 October 1993); https://doi.org/10.1117/12.158721

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available