Time evolution of excitonic absorption bleaching of resonant tunneling bi-quantum-well structures

Atsushi Tackeuchi, Shunichi Muto, Tsuguo Inata, Toshio Fujii

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We report the time evolution of excitonic absorption bleaching in resonant tunneling bi-quantum-well (TBQ) structures, in which the ground electron level in a narrow well has the same energy as the second electron level in a wide well. In resonant TBQ structure, we observed a reduction in the absorption recovery time and an increase in the tail-to-peak ratio of the absorption change. By comparing the absorption change of resonant TBQ with the e2-hh2 excitonic absorption change of conventional multiple quantum wells (MQW), we show that the increase in the tail-to-peak ratio of a resonant TBQ can be attributed to the thermally remaining holes in the first excited subband of heavy holes.

Original languageEnglish
Pages (from-to)2730-2733
Number of pages4
JournalJapanese journal of applied physics
Volume30
Issue number11R
DOIs
Publication statusPublished - 1991 Nov
Externally publishedYes

Keywords

  • GaAs
  • MQW
  • Quantum well
  • TBQ
  • Tunnel

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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