Polariton thermalization in GaN microcavities in the strong light-matter coupling regime

被引：2
|
作者：
Stokker-Cheregi, F. [1 ]
Zamfirescu, M.
Vinattieri, A.
Gurioli, M.
Sellers, I.
Semond, F.
Leroux, M.
Massies, J.
机构：
[1] Univ Florence, Dipartimento Fis, LENS, I-50019 Sesto Fiorentino, Italy
[2] CNRS, CRHEA, F-06560 Valbonne, France
来源：
SUPERLATTICES AND MICROSTRUCTURES | 2007年 / 41卷 / 5-6期
关键词：
microcavity; nitrides; polariton; thermalization;
D O I：
10.1016/j.spmi.2007.03.016
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We discuss the thermalization of the polariton population from a bulk GaN lambda/2 microcavity at room temperature. Simultaneous optical measurements of reflectivity and photoluminescence (PL), as well as time resolved measurements, reveal strong light-matter coupling. Transfer matrix theory is used to calculate reflectivity, absorption, and transmission coefficients for the structure. The PL emission is found to be thermalized, despite its very short lifetime, suggesting the existence of very fast energy relaxation channels. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：376 / 380
页数：5
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