Optical absorption spectra of a quantum dot in a microcavity

被引：2
|
作者：
Andrews, JT [1 ]
Sen, P
Puri, RR
机构：
[1] Shri GS Inst Technol & Sci, Dept Appl Phys, Indore 452003, India
[2] Bhabha Atom Res Ctr, Div Theoret Phys, Bombay 400085, Maharashtra, India
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 1999年 / 11卷 / 32期
关键词：
D O I：
10.1088/0953-8984/11/32/319
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Exact quantum electrodynamical results are obtained for a semiconductor quantum dot placed inside a microcavity of arbitrary photon leakage (kappa), and radiative (gamma) and nonradiative (gamma(c)) decay rates. Analytical results are obtained for the density matrix elements. The absorption spectra thus obtained for arbitrary values of kappa, gamma and gamma(c) exhibit the solid-state analogue of the vacuum Rabi splitting when the system decay parameters are much smaller than the quantum dot-cavity-field coupling parameter. Numerical estimates are made for samples of CdS and GaAs quantum dots of dimensions 19 Angstrom and 56 Angstrom, respectively. The results are in qualitative agreement with the experimental observations.
引用
收藏
页码：6287 / 6300
页数：14
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