Time-resolved photoluminescence spectra of high-density InGaAs/AlGaAs quantum wire structures

Noriaki Tsurumachi, Chang Sik Son, Tae Geun Kim, Kazunori Hikosaka, Kazuhiro Komori, Mutsuo Ogura

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We investigated the temperature dependence of the time-resolved photoluminescence (PL) spectra of high-density InGaAs/AlGaAs quantum wire (QWR) distributed-feedback laser structure on a submicron grating. A red-shift of peak in the time-resolved PL after photo-excitation was observed due to the relaxation of the photo-generated excitons from the entire QWR to localized centers at 10 K. On the other hand, at 60 K, no red-shift in the time-resolved PL spectra was observed since the localization centers are thermally activated and the excitons are delocalized.

Original languageEnglish
Pages (from-to)300-303
Number of pages4
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume21
Issue number2-4
DOIs
Publication statusPublished - 2004 Mar 1
Externally publishedYes

Fingerprint

Semiconductor quantum wires
quantum wires
aluminum gallium arsenides
Photoluminescence
photoluminescence
Excitons
red shift
excitons
Photoexcitation
Distributed feedback lasers
distributed feedback lasers
photoexcitation
gratings
temperature dependence
Temperature
LDS 751

Keywords

  • Localized exciton
  • Quantum wire
  • Time-resolved Photoluminescence

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Time-resolved photoluminescence spectra of high-density InGaAs/AlGaAs quantum wire structures. / Tsurumachi, Noriaki; Son, Chang Sik; Kim, Tae Geun; Hikosaka, Kazunori; Komori, Kazuhiro; Ogura, Mutsuo.

In: Physica E: Low-Dimensional Systems and Nanostructures, Vol. 21, No. 2-4, 01.03.2004, p. 300-303.

Research output: Contribution to journalArticle

Tsurumachi, Noriaki ; Son, Chang Sik ; Kim, Tae Geun ; Hikosaka, Kazunori ; Komori, Kazuhiro ; Ogura, Mutsuo. / Time-resolved photoluminescence spectra of high-density InGaAs/AlGaAs quantum wire structures. In: Physica E: Low-Dimensional Systems and Nanostructures. 2004 ; Vol. 21, No. 2-4. pp. 300-303.
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AU - Komori, Kazuhiro

AU - Ogura, Mutsuo

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