High performance InGaAs/GaAs quantum well infrared photodetectors

S. D. Gunapala, K. M.S.V. Bandara, B. F. Levine, G. Sarusi, J. S. Park, T. L. Lin, W. T. Pike, J. K. Liu

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

We have measured the optical and transport properties of In 0.2Ga0.8As/GaAs quantum well infrared photodetectors based on bound-to-bound, bound-to-quasibound, and bound-to-continuum intersubband transitions. Excellent hot electron transport and high detectivity D*=1.8×1010 cmHz/W (at λp=16.7 μm) were achieved at temperature T=40 K.

Original languageEnglish
Pages (from-to)3431-3433
Number of pages3
JournalApplied Physics Letters
Volume64
Issue number25
DOIs
StatePublished - 1 Dec 1994
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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