Voltage tunable quantum well infrared detector

S. R. Parihar, Stephen Aplin Lyon, M. Santos, Mansour Shayegan

Research output: Contribution to journalArticle

51 Scopus citations

Abstract

Measurements on a single quantum well infrared detector with its peak responsivity at 5.3 μm show a large Stark shift under bias. The detector has one graded barrier to enhance the effect of an electric field on the subband spacing. Several times greater change in the intersubband transition energy with applied field is obtained this way compared to the square well. Calculations show an even larger Stark shift possible with a stepped well structure.

Original languageEnglish (US)
Pages (from-to)2417-2419
Number of pages3
JournalApplied Physics Letters
Volume55
Issue number23
DOIs
StatePublished - Dec 1 1989

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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