NOTE ON SUPERRADIANCE OF EXCITONIC MOLECULES

被引：20

作者：

AGRANOVICH, VM ^{[1
]}

MUKAMEL, S ^{[1
]}

机构：

[1] UNIV ROCHESTER, DEPT CHEM, ROCHESTER, NY 14627 USA

来源：

PHYSICS LETTERS A | 1990年 / 147卷 / 2-3期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0375-9601(90)90886-S

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The radiative decay of excitonic molecules can proceed in two channels: decay to a single exciton and a photon or a direct transition to the ground state with the emission of a photon with the entire biexciton energy (approximately twice the exciton energy). The latter channel is induced by anharmonicity and is normally much weaker. We show that in geometrically restricted systems (surfaces, monolayers, microcrystallites, quantum wells), and at low temperatures, the latter channel is superradiant whereas the former is not. This may provide a new method for the direct observation of biexcitons. © 1990.

引用

页码：155 / 160

页数：6

共 38 条

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