Real-space mapping of exciton wave function in a GaAs quantum dot by near-field optical imaging spectroscopy

Kazunari Matsuda, Toshiharu Saiki, Shintaro Nomura, Masaru Mihara, Yoshinobu Aoyagi

Research output: Contribution to journalArticle

Abstract

We describe near-field photoluminescence imaging spectroscopy of a single naturally occurring GaAs quantum dot in a narrow quantum well. A spatial mapping of the center-of-mass wave function of the exciton state in the quantum dot is demonstrated due to the realization of a high spatial resolution (30 nm) of imaging spectroscopy and the selection of a large quantum dot (100 nm). We observe an elongation along the [110] crystal axis of the wave function in the exciton state.

Original languageEnglish
Pages (from-to)285-288
Number of pages4
JournalPhysica Status Solidi (B) Basic Research
Volume238
Issue number2
DOIs
Publication statusPublished - 2003 Jul

Fingerprint

Wave functions
Excitons
Semiconductor quantum dots
near fields
quantum dots
excitons
wave functions
Spectroscopy
Imaging techniques
spectroscopy
Semiconductor quantum wells
elongation
center of mass
Elongation
Photoluminescence
spatial resolution
quantum wells
photoluminescence
Crystals
high resolution

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Real-space mapping of exciton wave function in a GaAs quantum dot by near-field optical imaging spectroscopy. / Matsuda, Kazunari; Saiki, Toshiharu; Nomura, Shintaro; Mihara, Masaru; Aoyagi, Yoshinobu.

In: Physica Status Solidi (B) Basic Research, Vol. 238, No. 2, 07.2003, p. 285-288.

Research output: Contribution to journalArticle

Matsuda, Kazunari ; Saiki, Toshiharu ; Nomura, Shintaro ; Mihara, Masaru ; Aoyagi, Yoshinobu. / Real-space mapping of exciton wave function in a GaAs quantum dot by near-field optical imaging spectroscopy. In: Physica Status Solidi (B) Basic Research. 2003 ; Vol. 238, No. 2. pp. 285-288.
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