Measurements of exciton-polariton dynamics in ZnO by using nonlinear spectroscopic techniques

K. Hazu; S. Adachi; T. Sota; S. F. Chichibu

doi:10.1016/j.jlumin.2004.09.033

Measurements of exciton-polariton dynamics in ZnO by using nonlinear spectroscopic techniques

K. Hazu^*, S. Adachi, T. Sota, S. F. Chichibu

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

We have studied the exciton-polariton dynamics in a c-face bulk ZnO crystal grown by the seeded vapor transport method. We have performed two-pulse spectrally resolved four-wave mixing (SR-FWM) and three-pulse SR-FWM at T=10 K. In two-pulse FWM experiment, obtained FWM signals showed the fast dephasing which has been attributed to the strong polariton dispersion of the upper polariton of B exciton. On the other hand, in three-pulse FWM experiment, the signal decay shows the free exciton population relaxation. Observed FWM signal has decayed with time constant ∼12 ps which may represent exciton-polariton lifetime.

Original language	English
Pages (from-to)	7-10
Number of pages	4
Journal	Journal of Luminescence
Volume	112
Issue number	1
DOIs	https://doi.org/10.1016/j.jlumin.2004.09.033
Publication status	Published - 2005 Apr 1

Keywords

Exciton
Four-wave mixing
Polariton
ZnO

ASJC Scopus subject areas

Biophysics
Biochemistry
Chemistry(all)
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

Access to Document

10.1016/j.jlumin.2004.09.033

Cite this

@article{5d9da5effe2e4e00a71bb294d2f7c7a7,

title = "Measurements of exciton-polariton dynamics in ZnO by using nonlinear spectroscopic techniques",

abstract = "We have studied the exciton-polariton dynamics in a c-face bulk ZnO crystal grown by the seeded vapor transport method. We have performed two-pulse spectrally resolved four-wave mixing (SR-FWM) and three-pulse SR-FWM at T=10 K. In two-pulse FWM experiment, obtained FWM signals showed the fast dephasing which has been attributed to the strong polariton dispersion of the upper polariton of B exciton. On the other hand, in three-pulse FWM experiment, the signal decay shows the free exciton population relaxation. Observed FWM signal has decayed with time constant ∼12 ps which may represent exciton-polariton lifetime.",

keywords = "Exciton, Four-wave mixing, Polariton, ZnO",

author = "K. Hazu and S. Adachi and T. Sota and Chichibu, {S. F.}",

year = "2005",

month = apr,

day = "1",

doi = "10.1016/j.jlumin.2004.09.033",

language = "English",

volume = "112",

pages = "7--10",

journal = "Journal of Luminescence",

issn = "0022-2313",

publisher = "Elsevier",

number = "1",

}

TY - JOUR

T1 - Measurements of exciton-polariton dynamics in ZnO by using nonlinear spectroscopic techniques

AU - Hazu, K.

AU - Adachi, S.

AU - Sota, T.

AU - Chichibu, S. F.

PY - 2005/4/1

Y1 - 2005/4/1

N2 - We have studied the exciton-polariton dynamics in a c-face bulk ZnO crystal grown by the seeded vapor transport method. We have performed two-pulse spectrally resolved four-wave mixing (SR-FWM) and three-pulse SR-FWM at T=10 K. In two-pulse FWM experiment, obtained FWM signals showed the fast dephasing which has been attributed to the strong polariton dispersion of the upper polariton of B exciton. On the other hand, in three-pulse FWM experiment, the signal decay shows the free exciton population relaxation. Observed FWM signal has decayed with time constant ∼12 ps which may represent exciton-polariton lifetime.

AB - We have studied the exciton-polariton dynamics in a c-face bulk ZnO crystal grown by the seeded vapor transport method. We have performed two-pulse spectrally resolved four-wave mixing (SR-FWM) and three-pulse SR-FWM at T=10 K. In two-pulse FWM experiment, obtained FWM signals showed the fast dephasing which has been attributed to the strong polariton dispersion of the upper polariton of B exciton. On the other hand, in three-pulse FWM experiment, the signal decay shows the free exciton population relaxation. Observed FWM signal has decayed with time constant ∼12 ps which may represent exciton-polariton lifetime.

KW - Exciton

KW - Four-wave mixing

KW - Polariton

KW - ZnO

UR - http://www.scopus.com/inward/record.url?scp=15544389528&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=15544389528&partnerID=8YFLogxK

U2 - 10.1016/j.jlumin.2004.09.033

DO - 10.1016/j.jlumin.2004.09.033

M3 - Article

AN - SCOPUS:15544389528

SN - 0022-2313

VL - 112

SP - 7

EP - 10

JO - Journal of Luminescence

JF - Journal of Luminescence

IS - 1

ER -

Measurements of exciton-polariton dynamics in ZnO by using nonlinear spectroscopic techniques

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this