Real-space mapping of exciton and biexciton center-of-mass wave functions in a GaAs quantum dot by near-field optical imaging spectroscopy

K. Matsuda, T. Saiki

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

Abstract

Near-field optical imaging spectroscopy of naturally occurring GaAs quantum dots (QDs) with a lateral size of approximately 100 nm is presented. Due to the enhancement of spatial resolution up to 30 nm, we successfully mapped out center-of-mass wave functions of exciton and biexciton states confined in a single QD. A clear difference in the shape of the wave functions between these states was observed. This technique can be widely applied to the optical manipulation and control of eigenstgates both in single QDs and in coupled QD systems.

Original languageEnglish
Title of host publicationQuantum Electronics and Laser Science Conference, QELS 2002
PublisherOptica Publishing Group (formerly OSA)
ISBN (Electronic)1557527083
Publication statusPublished - 2002
Externally publishedYes
EventQuantum Electronics and Laser Science Conference, QELS 2002 - Long Beach, United States
Duration: 2002 May 192002 May 22

Publication series

NameOptics InfoBase Conference Papers

Conference

ConferenceQuantum Electronics and Laser Science Conference, QELS 2002
Country/TerritoryUnited States
CityLong Beach
Period02/5/1902/5/22

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

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