Demonstration of a 256×256 middle-wavelength infrared focal plane array based on InGaAs/InGaP quantum dot infrared photodetectors

J. Jiang, K. Mi, S. Tsao, W. Zhang, H. Lim, T. O'Sullivan, T. Sills, M. Razeghi*, G. J. Brown, M. Z. Tidrow

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

92 Scopus citations

Abstract

Middle-wavelength infrared focal plane array (FPA) based on InGaAs/InGaP quantum dot infrared photodetectors (QDIP) was demostrated. It was observed that QDIP showed a high detectivity of 3.62×10 10 cmHz 1/2/W at a temperature of 95 K. It was also observed that QDIP had a low quantum efficiency due to the small fill factor of quantum dots across a single epitaxial layers. The results show that thermal imaging could be achieved at temperatures as high as 120 K.

Original languageEnglish (US)
Pages (from-to)2232-2234
Number of pages3
JournalApplied Physics Letters
Volume84
Issue number13
DOIs
StatePublished - Mar 29 2004

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Demonstration of a 256×256 middle-wavelength infrared focal plane array based on InGaAs/InGaP quantum dot infrared photodetectors'. Together they form a unique fingerprint.

Cite this