Nonlinear response of QWIP detectors: summary of data from four manufacturers

Douglas C. Arrington; John Edward Hubbs; Mark E. Gramer; Gary A. Dole

doi:10.1117/12.391741

17 July 2000 Nonlinear response of QWIP detectors: summary of data from four manufacturers

Douglas C. Arrington, John Edward Hubbs, Mark E. Gramer, Gary A. Dole

Proceedings Volume 4028, Infrared Detectors and Focal Plane Arrays VI; (2000) https://doi.org/10.1117/12.391741
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

Quantum Well Infrared Photodetectors (QWIPs) have been proposed for use in space based remote sensing applications. These space systems place stringent performance requirements on infrared detectors due to the low irradiance environments and the associated requirement for low temperature operation. This study demonstrates that, under these space conditions, the responsivity of a QWIP detector depends on frequency and that the shape of the frequency response depends on the operational conditions. The non-flat frequency response is empirically similar to dielectric relaxation effects observed in bulk extrinsic silicon and germanium photoconductors under similar operational conditions. Data from four QWIP detectors, obtained from four independent sources, demonstrate how the frequency response of QWIP detectors vary with temperature, photon irradiance, and bias voltage, and how the shape of the frequency response depends on the dynamic resistance of the detector. This QWIP frequency response results in a detector signal that is nonlinear with irradiance for some combinations of detector bias, photon irradiance, and operating temperature.

Citation Download Citation

Douglas C. Arrington, John Edward Hubbs, Mark E. Gramer, and Gary A. Dole "Nonlinear response of QWIP detectors: summary of data from four manufacturers", Proc. SPIE 4028, Infrared Detectors and Focal Plane Arrays VI, (17 July 2000); https://doi.org/10.1117/12.391741

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