Phase Relaxation Processes of Excitons in Island-Inserted Quantum Well Structures-Suppression of Relaxation and Giant Quantum Beats

T. Matsusue, T. Saiki, M. Kuwata-Gonokami, H. Akiyama, H. Sakai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Degenerate four wave mixing measurements are performed on exciton resonance in island inserted quantum wells, where AlAs islands are embedded in the center of the GaAs quantum wells. It is found that the island insertion causes strong suppression of phase relaxation of the excitons. Deep quantum beats are also observed and attributed to coherent lateral oscillations of excitons between adjacent regions with one monolayer well width difference.

Original languageEnglish
Title of host publicationUltrafast Electronics and Optoelectronics, UEO 1993
PublisherOptica Publishing Group (formerly OSA)
Pages138-141
Number of pages4
ISBN (Electronic)9781557528209
Publication statusPublished - 1993
EventUltrafast Electronics and Optoelectronics, UEO 1993 - San Francisco, United States
Duration: 1993 Jan 251993 Jan 25

Publication series

NameOptics InfoBase Conference Papers

Conference

ConferenceUltrafast Electronics and Optoelectronics, UEO 1993
Country/TerritoryUnited States
CitySan Francisco
Period93/1/2593/1/25

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

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