Size-dependent optical nonlinearities in GaN quantum dots

Philippe Riblet, Tanaka Satoru, Peter Ramvall, Shintaro Nomura, Yoshinobu Aoyagi

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We studied experimentally the influence of the size of GaN quantum dots on the exciton photoluminescence at 10 K under high optical excitation for which the spatial confinement was found to be a critical parameter for optical nonlinearities such as band-gap renormalization (BGR) and state-filling effects. As the dot size decreases, the BGR characteristic of bulk like dots becomes dominated by the state-filling nonlinearity. In addition, three-dimensional confinement is demonstrated by a comparison with a quantum well.

Original languageEnglish
Pages (from-to)377-381
Number of pages5
JournalSolid State Communications
Volume109
Issue number6
DOIs
Publication statusPublished - Jan 15 1999
Externally publishedYes

Fingerprint

Semiconductor quantum dots
Energy gap
nonlinearity
quantum dots
Photoexcitation
Excitons
Semiconductor quantum wells
Photoluminescence
excitons
quantum wells
photoluminescence
excitation
LDS 751

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

Cite this

Size-dependent optical nonlinearities in GaN quantum dots. / Riblet, Philippe; Satoru, Tanaka; Ramvall, Peter; Nomura, Shintaro; Aoyagi, Yoshinobu.

In: Solid State Communications, Vol. 109, No. 6, 15.01.1999, p. 377-381.

Research output: Contribution to journalArticle

Riblet, Philippe ; Satoru, Tanaka ; Ramvall, Peter ; Nomura, Shintaro ; Aoyagi, Yoshinobu. / Size-dependent optical nonlinearities in GaN quantum dots. In: Solid State Communications. 1999 ; Vol. 109, No. 6. pp. 377-381.
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