Far-infrared response of high-purity GaAs photoconductors

Jam Farhoomand; Robert E. McMurray Jr.; Eugene E. Haller; Elisabeth Bauser; I. Silier

doi:10.1117/12.224215

13 October 1995 Far-infrared response of high-purity GaAs photoconductors

Jam Farhoomand, Robert E. McMurray Jr., Eugene E. Haller, Elisabeth Bauser, I. Silier

Proceedings Volume 2558, Millimeter and Submillimeter Waves II; (1995) https://doi.org/10.1117/12.224215
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

In this paper we report the results of an extensive study on the far-infrared photoconductivity of high purity n-type GaAs. The crystal, which was grown at Max Plank Institute using liquid- phase epitaxy, exhibited the fine structures of the excited state transitions of the residual shallow level impurities. The major peak in the spectral response belongs to the 1s-2p transition, with its responsivity about thirty five times higher than the continuum. At 3.4K detector temperature, 625 mV bias, and 100 Hz chopping frequency the detector responsivity at 35.4 cm^-1 (279 micrometers ) was measured to be 0.017 A/W. Under these same conditions, the NEP was 5.9 X 10^-14 W/(root)Hz. The dark current at 25 mV bias was 5.6 X 10^-14 A.

Citation Download Citation

Jam Farhoomand, Robert E. McMurray Jr., Eugene E. Haller, Elisabeth Bauser, and I. Silier "Far-infrared response of high-purity GaAs photoconductors", Proc. SPIE 2558, Millimeter and Submillimeter Waves II, (13 October 1995); https://doi.org/10.1117/12.224215

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