Exciton-polariton effects in a pencil-like ZnO microwire

Yinglei Wang; Zhe Zhang; Hongxing Dong; Wei Xie; Tao Hu; Zhanghai Chen

doi:10.1016/j.ssc.2015.08.029

Exciton-polariton effects in a pencil-like ZnO microwire

Yinglei Wang
, Zhe Zhang
, Hongxing Dong
, Wei Xie
, Tao Hu
, Zhanghai Chen^*

^*Corresponding author for this work

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

1 Scopus citations

Abstract

We demonstrate the observation of the strong excitons-photons coupling in pencil-like ZnO microwires at room temperature. The pencil-like ZnO microwires with high optical quality were fabricated by using a carbothermal growth method at 1100 °C. The strong coupling of excitons and photons is evidenced by using angle-resolved photoluminescence spectroscopy. By scanning excitations spot from the arm to the tip of the pencil-like ZnO microwires, we found that the confinement of the tip is weaker than that of the arm due to the shrinked size. With increasing the excitation power, the lowest energy states of exciton-polariton modes are remarkably populated, and lasing phenomena are observed. By using the coupled oscillator model, the polariton effect can be well described.

Original language	English
Article number	12765
Pages (from-to)	24-27
Number of pages	4
Journal	Solid State Communications
Volume	223
DOIs	https://doi.org/10.1016/j.ssc.2015.08.029
State	Published - 1 Dec 2015
Externally published	Yes

Access to Document

10.1016/j.ssc.2015.08.029

Cite this

@article{26300b6389324bffa0c59ee5a74645ba,

title = "Exciton-polariton effects in a pencil-like ZnO microwire",

abstract = "We demonstrate the observation of the strong excitons-photons coupling in pencil-like ZnO microwires at room temperature. The pencil-like ZnO microwires with high optical quality were fabricated by using a carbothermal growth method at 1100 °C. The strong coupling of excitons and photons is evidenced by using angle-resolved photoluminescence spectroscopy. By scanning excitations spot from the arm to the tip of the pencil-like ZnO microwires, we found that the confinement of the tip is weaker than that of the arm due to the shrinked size. With increasing the excitation power, the lowest energy states of exciton-polariton modes are remarkably populated, and lasing phenomena are observed. By using the coupled oscillator model, the polariton effect can be well described.",

author = "Yinglei Wang and Zhe Zhang and Hongxing Dong and Wei Xie and Tao Hu and Zhanghai Chen",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2015",

month = dec,

day = "1",

doi = "10.1016/j.ssc.2015.08.029",

language = "英语",

volume = "223",

pages = "24--27",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Exciton-polariton effects in a pencil-like ZnO microwire

AU - Wang, Yinglei

AU - Zhang, Zhe

AU - Dong, Hongxing

AU - Xie, Wei

AU - Hu, Tao

AU - Chen, Zhanghai

PY - 2015/12/1

Y1 - 2015/12/1

N2 - We demonstrate the observation of the strong excitons-photons coupling in pencil-like ZnO microwires at room temperature. The pencil-like ZnO microwires with high optical quality were fabricated by using a carbothermal growth method at 1100 °C. The strong coupling of excitons and photons is evidenced by using angle-resolved photoluminescence spectroscopy. By scanning excitations spot from the arm to the tip of the pencil-like ZnO microwires, we found that the confinement of the tip is weaker than that of the arm due to the shrinked size. With increasing the excitation power, the lowest energy states of exciton-polariton modes are remarkably populated, and lasing phenomena are observed. By using the coupled oscillator model, the polariton effect can be well described.

AB - We demonstrate the observation of the strong excitons-photons coupling in pencil-like ZnO microwires at room temperature. The pencil-like ZnO microwires with high optical quality were fabricated by using a carbothermal growth method at 1100 °C. The strong coupling of excitons and photons is evidenced by using angle-resolved photoluminescence spectroscopy. By scanning excitations spot from the arm to the tip of the pencil-like ZnO microwires, we found that the confinement of the tip is weaker than that of the arm due to the shrinked size. With increasing the excitation power, the lowest energy states of exciton-polariton modes are remarkably populated, and lasing phenomena are observed. By using the coupled oscillator model, the polariton effect can be well described.

UR - https://www.scopus.com/pages/publications/84943264661

U2 - 10.1016/j.ssc.2015.08.029

DO - 10.1016/j.ssc.2015.08.029

M3 - 文章

AN - SCOPUS:84943264661

SN - 0038-1098

VL - 223

SP - 24

EP - 27

JO - Solid State Communications

JF - Solid State Communications

M1 - 12765

ER -

Exciton-polariton effects in a pencil-like ZnO microwire

Abstract

Access to Document

Other files and links

Fingerprint

Cite this