High performance quantum dot-quantum well infrared focal plane arrays

S. Tsao; A. Myzaferi; M. Razeghi

doi:10.1117/12.846252

15 February 2010 High performance quantum dot-quantum well infrared focal plane arrays

S. Tsao, A. Myzaferi, M. Razeghi

Proceedings Volume 7605, Optoelectronic Integrated Circuits XII; 76050J (2010) https://doi.org/10.1117/12.846252
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

Quantum dot (QD) devices are a promising technology for high operating temperature detectors. We have studied InAs QDs embedded in an InGaAs/InAlAs quantum well structure on InP substrate for middle wavelength infrared detectors and focal plane arrays (FPAs). This combined dot-well structure has weak dot confinement of carriers, and as a result, the device behavior differs significantly from that in more common dot systems with stronger confinement. We report on our studies of the energy levels in the QDWIP devices and on QD-based detectors operating at high temperature with D* over 10¹⁰ cmHz^1/2/W at 150 K operating temperature and high quantum efficiency over 50%. FPAs have been demonstrated operating at up to 200 K. We also studied two methods of adapting the QDWIP device to better accommodate FPA readout circuit limitations.

Citation Download Citation

S. Tsao, A. Myzaferi, and M. Razeghi "High performance quantum dot-quantum well infrared focal plane arrays", Proc. SPIE 7605, Optoelectronic Integrated Circuits XII, 76050J (15 February 2010); https://doi.org/10.1117/12.846252

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