Scattering processes and dynamics of exciton-biexciton system in GaN

Satoru Adachi; Kouji Hazu; Takayuki Sota; Shigefusa F. Chichibu; Takashi Mukai; Shunichi Muto; Katsuo Suzuki

doi:10.1117/12.475699

Scattering processes and dynamics of exciton-biexciton system in GaN

Satoru Adachi^*, Kouji Hazu, Takayuki Sota, Shigefusa F. Chichibu, Takashi Mukai, Shunichi Muto, Katsuo Suzuki

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

3 Citations (Scopus)

Abstract

Bound and unbound biexcitons in a free-standing bulk GaN are investigated by time-integrated and spectrallyresolved four-wave mixing measurements, where the formation of hetero-biexcitons that consist of A and B excitons (XXAB) as well as A-biexcitons (XXAA) and their unbound biexciton (XX AA) are clearly observed. The FWM spectra and delay-Time dependence are explained qualitatively and the interaction between A-And B-excitons gives rise to the phase shifts of the quantum beating and the energy shifts of the spectra, which is considered as the effect of the unbound state of XXAB (i.e. XX AB). The unbound A-biexciton (XX AA) is also observed clearly in spectral and temporal domain and is found to play an important role in FWM signals for all polarizations.

Original language	English
Pages (from-to)	188-201
Number of pages	14
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4992
DOIs	https://doi.org/10.1117/12.475699
Publication status	Published - 2003 May 30
Event	Ultrafast Phenomena in Semiconductors VII 2003 - San Jose, United States Duration: 2003 Jan 25 → 2003 Jan 31

Keywords

Biexciton
Exciton-Exciton Correlation
Four-Wave Mixing
GaN

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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Cite this

@article{a26c18e820964825af5417ea75857e6a,

title = "Scattering processes and dynamics of exciton-biexciton system in GaN",

abstract = "Bound and unbound biexcitons in a free-standing bulk GaN are investigated by time-integrated and spectrallyresolved four-wave mixing measurements, where the formation of hetero-biexcitons that consist of A and B excitons (XXAB) as well as A-biexcitons (XXAA) and their unbound biexciton (XX AA) are clearly observed. The FWM spectra and delay-Time dependence are explained qualitatively and the interaction between A-And B-excitons gives rise to the phase shifts of the quantum beating and the energy shifts of the spectra, which is considered as the effect of the unbound state of XXAB (i.e. XX AB). The unbound A-biexciton (XX AA) is also observed clearly in spectral and temporal domain and is found to play an important role in FWM signals for all polarizations.",

keywords = "Biexciton, Exciton-Exciton Correlation, Four-Wave Mixing, GaN",

author = "Satoru Adachi and Kouji Hazu and Takayuki Sota and Chichibu, {Shigefusa F.} and Takashi Mukai and Shunichi Muto and Katsuo Suzuki",

note = "Funding Information: by Casio Science Promotion Foundation, T EPCO Research Foundation, NSGF, Publisher Copyright: {\textcopyright} 2003 SPIE. All rights reserved.; Ultrafast Phenomena in Semiconductors VII 2003 ; Conference date: 25-01-2003 Through 31-01-2003",

year = "2003",

month = may,

day = "30",

doi = "10.1117/12.475699",

language = "English",

volume = "4992",

pages = "188--201",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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TY - JOUR

T1 - Scattering processes and dynamics of exciton-biexciton system in GaN

AU - Adachi, Satoru

AU - Hazu, Kouji

AU - Sota, Takayuki

AU - Chichibu, Shigefusa F.

AU - Mukai, Takashi

AU - Muto, Shunichi

AU - Suzuki, Katsuo

PY - 2003/5/30

Y1 - 2003/5/30

N2 - Bound and unbound biexcitons in a free-standing bulk GaN are investigated by time-integrated and spectrallyresolved four-wave mixing measurements, where the formation of hetero-biexcitons that consist of A and B excitons (XXAB) as well as A-biexcitons (XXAA) and their unbound biexciton (XX AA) are clearly observed. The FWM spectra and delay-Time dependence are explained qualitatively and the interaction between A-And B-excitons gives rise to the phase shifts of the quantum beating and the energy shifts of the spectra, which is considered as the effect of the unbound state of XXAB (i.e. XX AB). The unbound A-biexciton (XX AA) is also observed clearly in spectral and temporal domain and is found to play an important role in FWM signals for all polarizations.

AB - Bound and unbound biexcitons in a free-standing bulk GaN are investigated by time-integrated and spectrallyresolved four-wave mixing measurements, where the formation of hetero-biexcitons that consist of A and B excitons (XXAB) as well as A-biexcitons (XXAA) and their unbound biexciton (XX AA) are clearly observed. The FWM spectra and delay-Time dependence are explained qualitatively and the interaction between A-And B-excitons gives rise to the phase shifts of the quantum beating and the energy shifts of the spectra, which is considered as the effect of the unbound state of XXAB (i.e. XX AB). The unbound A-biexciton (XX AA) is also observed clearly in spectral and temporal domain and is found to play an important role in FWM signals for all polarizations.

KW - Biexciton

KW - Exciton-Exciton Correlation

KW - Four-Wave Mixing

KW - GaN

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DO - 10.1117/12.475699

M3 - Conference article

AN - SCOPUS:1942482103

SN - 0277-786X

VL - 4992

SP - 188

EP - 201

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Ultrafast Phenomena in Semiconductors VII 2003

Y2 - 25 January 2003 through 31 January 2003

ER -

Scattering processes and dynamics of exciton-biexciton system in GaN

Abstract

Keywords

ASJC Scopus subject areas

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