Optically induced hybridization of a quantum dot state with a filled continuum

被引：34

作者：

Dalgarno, P. A. ^{[1
]}

Ediger, M. ^{[1
]}

Gerardot, B. D. ^{[1
]}

Smith, J. M. ^{[1
]}

Seidl, S. ^{[2
,3
]}

Kroner, M. ^{[2
,3
]}

Karrai, K. ^{[2
,3
]}

Petroff, P. M. ^{[4
]}

Govorov, A. O. ^{[5
]}

Warburton, R. J. ^{[1
]}

机构：

[1] Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland

[2] Univ Munich, Ctr Nanosci, D-80539 Munich, Germany

[3] Univ Munich, Dept Phys, D-80539 Munich, Germany

[4] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA

[5] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 17期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.100.176801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present an optical signature of a hybridization between a localized quantum dot state and a filled continuum. Radiative recombination of the negatively charged trion in a single quantum dot leaves behind a single electron. We show that in two regions of vertical electric field, the electron hybridizes with a continuum through a tunneling interaction. The hybridization manifests itself through an unusual voltage dependence of the emission energy and a non-Lorentzian line shape, features which we reproduce with a theory based on the Anderson Hamiltonian.

引用

页数：4

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