Polarized photoreflectance spectra of excitonic polaritons in a ZnO single crystal

被引：94

作者：

Chichibu, SF ^{[1
]}

Sota, T

Cantwell, G

Eason, DB

Litton, CW

机构：

[1] Univ Tsukuba, Inst Appl Phys, Tsukuba, Ibaraki 3058573, Japan

[2] Waseda Univ, Dept Elect Engn & Comp Engn, Shinjuku Ku, Sendai, Miyagi 1698555, Japan

[3] Eagle Picher Ind, Miami, OK 74354 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2003年 / 93卷 / 01期

关键词：

D O I：

10.1063/1.1527707

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Exciton-polariton structures in a high-quality bulk ZnO single crystal were resolved at 8 K by means of polarized photoreflectance (PR) and photoluminescence measurements. The energies of the PR resonances corresponded to those of the upper and lower exciton-polariton branches, where A, B, and C excitons couple simultaneously to an electromagnetic wave. Longitudinal-transverse splitting of ground-state exciton polaritons and resonances due to the first excited states of respective excitons were observed due to the large oscillator strength. Photoluminescence peaks due to the corresponding polarion branches were clearly resolved. The valence-band ordering was confirmed to be A-Gamma(9v), B-Gamma(7v)(u), and C-Gamma(7v)(l). (C) 2003 American Institute of Physics.

引用

页码：756 / 758

页数：3