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

doi:10.1016/j.physe.2003.11.017

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 journal › Conference article › peer-review

6 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 language	English
Pages (from-to)	300-303
Number of pages	4
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	21
Issue number	2-4
DOIs	https://doi.org/10.1016/j.physe.2003.11.017
Publication status	Published - 2004 Mar
Externally published	Yes
Event	Proceedings of the Eleventh International Conference on Modulation (MSS11) - Nara, Japan Duration: 2003 Jul 14 → 2003 Jul 18

Keywords

Localized exciton
Quantum wire
Time-resolved Photoluminescence

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

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10.1016/j.physe.2003.11.017

Cite this

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title = "Time-resolved photoluminescence spectra of high-density InGaAs/AlGaAs quantum wire structures",

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.",

keywords = "Localized exciton, Quantum wire, Time-resolved Photoluminescence",

author = "Noriaki Tsurumachi and Son, {Chang Sik} and Kim, {Tae Geun} and Kazunori Hikosaka and Kazuhiro Komori and Mutsuo Ogura",

year = "2004",

month = mar,

doi = "10.1016/j.physe.2003.11.017",

language = "English",

volume = "21",

pages = "300--303",

journal = "Physica E: Low-Dimensional Systems and Nanostructures",

issn = "1386-9477",

publisher = "Elsevier",

number = "2-4",

note = "Proceedings of the Eleventh International Conference on Modulation (MSS11) ; Conference date: 14-07-2003 Through 18-07-2003",

}

TY - JOUR

T1 - Time-resolved photoluminescence spectra of high-density InGaAs/AlGaAs quantum wire structures

AU - Tsurumachi, Noriaki

AU - Son, Chang Sik

AU - Kim, Tae Geun

AU - Hikosaka, Kazunori

AU - Komori, Kazuhiro

AU - Ogura, Mutsuo

PY - 2004/3

Y1 - 2004/3

N2 - 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.

AB - 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.

KW - Localized exciton

KW - Quantum wire

KW - Time-resolved Photoluminescence

UR - http://www.scopus.com/inward/record.url?scp=1642524929&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1642524929&partnerID=8YFLogxK

U2 - 10.1016/j.physe.2003.11.017

DO - 10.1016/j.physe.2003.11.017

M3 - Conference article

AN - SCOPUS:1642524929

SN - 1386-9477

VL - 21

SP - 300

EP - 303

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 2-4

T2 - Proceedings of the Eleventh International Conference on Modulation (MSS11)

Y2 - 14 July 2003 through 18 July 2003

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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