Comparison of exciton-biexciton with bound exciton-biexciton dynamics in GaN: Quantum beats and temperature dependence of the acoustic-phonon interaction

K. Kyhm, R. A. Taylor, J. F. Ryan, Takao Aoki, M. Kuwata-Gonokami, B. Beaumont, P. Gibart

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The polarization dependence of biexcitonic signals and quantum beats between A-excitons (XA) and A-biexcitons (XAXA) in a high-quality GaN epilayer is measured by spectrally-resolved and time-integrated four-wave mixing. With cross-linear polarised light, mixed beats with two periods are observed: the first beating period corresponds to the energy splitting between XA and XAXA, and agrees well with the calculated XAXA binding energy; while the second beating period corresponds to that between XA and donor bound excitons (D0X). The temperature-dependent homogeneous linewidth shows that the D0X has a larger acoustic phonon coupling coefficient than the XAXA. We also measured the polarization dependent B-biexciton (XBXB) signal. The effective masses for the A- and B-hole were deduced from the binding energy.

Original languageEnglish
Pages (from-to)475-479
Number of pages5
JournalPhysica Status Solidi (B) Basic Research
Volume228
Issue number2
DOIs
Publication statusPublished - 2001 Nov
Externally publishedYes

Fingerprint

Binding energy
Excitons
synchronism
binding energy
Acoustics
excitons
Polarization
temperature dependence
acoustics
Four wave mixing
Epilayers
polarization
Light polarization
coupling coefficients
four-wave mixing
Linewidth
polarized light
interactions
Temperature
temperature

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Comparison of exciton-biexciton with bound exciton-biexciton dynamics in GaN : Quantum beats and temperature dependence of the acoustic-phonon interaction. / Kyhm, K.; Taylor, R. A.; Ryan, J. F.; Aoki, Takao; Kuwata-Gonokami, M.; Beaumont, B.; Gibart, P.

In: Physica Status Solidi (B) Basic Research, Vol. 228, No. 2, 11.2001, p. 475-479.

Research output: Contribution to journalArticle

@article{12a42417ed7e4e37b6f6bc99a987c5a1,
title = "Comparison of exciton-biexciton with bound exciton-biexciton dynamics in GaN: Quantum beats and temperature dependence of the acoustic-phonon interaction",
abstract = "The polarization dependence of biexcitonic signals and quantum beats between A-excitons (XA) and A-biexcitons (XAXA) in a high-quality GaN epilayer is measured by spectrally-resolved and time-integrated four-wave mixing. With cross-linear polarised light, mixed beats with two periods are observed: the first beating period corresponds to the energy splitting between XA and XAXA, and agrees well with the calculated XAXA binding energy; while the second beating period corresponds to that between XA and donor bound excitons (D0X). The temperature-dependent homogeneous linewidth shows that the D0X has a larger acoustic phonon coupling coefficient than the XAXA. We also measured the polarization dependent B-biexciton (XBXB) signal. The effective masses for the A- and B-hole were deduced from the binding energy.",
author = "K. Kyhm and Taylor, {R. A.} and Ryan, {J. F.} and Takao Aoki and M. Kuwata-Gonokami and B. Beaumont and P. Gibart",
year = "2001",
month = "11",
doi = "10.1002/1521-3951(200111)228:2<475::AID-PSSB475>3.0.CO;2-6",
language = "English",
volume = "228",
pages = "475--479",
journal = "Physica Status Solidi (B): Basic Research",
issn = "0370-1972",
publisher = "Wiley-VCH Verlag",
number = "2",

}

TY - JOUR

T1 - Comparison of exciton-biexciton with bound exciton-biexciton dynamics in GaN

T2 - Quantum beats and temperature dependence of the acoustic-phonon interaction

AU - Kyhm, K.

AU - Taylor, R. A.

AU - Ryan, J. F.

AU - Aoki, Takao

AU - Kuwata-Gonokami, M.

AU - Beaumont, B.

AU - Gibart, P.

PY - 2001/11

Y1 - 2001/11

N2 - The polarization dependence of biexcitonic signals and quantum beats between A-excitons (XA) and A-biexcitons (XAXA) in a high-quality GaN epilayer is measured by spectrally-resolved and time-integrated four-wave mixing. With cross-linear polarised light, mixed beats with two periods are observed: the first beating period corresponds to the energy splitting between XA and XAXA, and agrees well with the calculated XAXA binding energy; while the second beating period corresponds to that between XA and donor bound excitons (D0X). The temperature-dependent homogeneous linewidth shows that the D0X has a larger acoustic phonon coupling coefficient than the XAXA. We also measured the polarization dependent B-biexciton (XBXB) signal. The effective masses for the A- and B-hole were deduced from the binding energy.

AB - The polarization dependence of biexcitonic signals and quantum beats between A-excitons (XA) and A-biexcitons (XAXA) in a high-quality GaN epilayer is measured by spectrally-resolved and time-integrated four-wave mixing. With cross-linear polarised light, mixed beats with two periods are observed: the first beating period corresponds to the energy splitting between XA and XAXA, and agrees well with the calculated XAXA binding energy; while the second beating period corresponds to that between XA and donor bound excitons (D0X). The temperature-dependent homogeneous linewidth shows that the D0X has a larger acoustic phonon coupling coefficient than the XAXA. We also measured the polarization dependent B-biexciton (XBXB) signal. The effective masses for the A- and B-hole were deduced from the binding energy.

UR - http://www.scopus.com/inward/record.url?scp=0035540128&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035540128&partnerID=8YFLogxK

U2 - 10.1002/1521-3951(200111)228:2<475::AID-PSSB475>3.0.CO;2-6

DO - 10.1002/1521-3951(200111)228:2<475::AID-PSSB475>3.0.CO;2-6

M3 - Article

AN - SCOPUS:0035540128

VL - 228

SP - 475

EP - 479

JO - Physica Status Solidi (B): Basic Research

JF - Physica Status Solidi (B): Basic Research

SN - 0370-1972

IS - 2

ER -