Quantum mechanical repulsion of exciton levels in a disordered quantum well -: art. no. 076801

被引：80

作者：

Intonti, F

Emiliani, V

Lienau, C

Elsaesser, T

Savona, V

Runge, E

Zimmermann, R

Nötzel, R

Ploog, KH

机构：

[1] Max Born Inst Nichtlineare Opt & Kurzzeitspektros, D-12489 Berlin, Germany

[2] Humboldt Univ, Inst Phys, D-10117 Berlin, Germany

[3] Paul Drude Inst Festkorperelekt, D-10117 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.87.076801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Spatially resolved photoluminescence spectra of a single quantum well are recorded by near-field spectroscopy. A set of over four hundred spectra displaying sharp emission lines from localized excitons is subject to a statistical analysis of the two-energy autocorrelation function. An accurate comparison with a quantum theory of the exciton center-of-mass motion in a two-dimensional spatially correlated disordered potential reveals clear signatures of quantum mechanical energy level repulsion, giving the spatial and energetic correlations of excitons in disordered quantum systems.

引用

页码：76801 / 1

页数：4

共 17 条

[1] SHARP-LINE PHOTOLUMINESCENCE AND 2-PHOTON ABSORPTION OF ZERO-DIMENSIONAL BIEXCITONS IN A GAAS/ALGAAS STRUCTURE
BRUNNER, K
ABSTREITER, G
BOHM, G
TRANKLE, G
WEIMANN, G
[J]. PHYSICAL REVIEW LETTERS, 1994, 73 (08) : 1138 - 1141
[2] Splitting of the excitonic peak in quantum wells with interfacial roughness
Castella, H
Wilkins, JW
[J]. PHYSICAL REVIEW B, 1998, 58 (24): : 16186 - 16193
[3] Ultrafast near-field spectroscopy of quasi-one-dimensional transport in a single quantum wire
Emiliani, V
Guenther, T
Lienau, C
Nötzel, R
Ploog, KH
[J]. PHYSICAL REVIEW B, 2000, 61 (16): : 10583 - 10586
[4] Fine structure splitting in the optical spectra of single GaAs quantum dots
Gammon, D
Snow, ES
Shanabrook, BV
Katzer, DS
Park, D
[J]. PHYSICAL REVIEW LETTERS, 1996, 76 (16) : 3005 - 3008
[5] Few-particle effects in semiconductor quantum dots: Observation of multicharged excitons
Hartmann, A
Ducommun, Y
Kapon, E
Hohenester, U
Molinari, E
[J]. PHYSICAL REVIEW LETTERS, 2000, 84 (24) : 5648 - 5651
[6] NEAR-FIELD SPECTROSCOPY OF THE QUANTUM CONSTITUENTS OF A LUMINESCENT SYSTEM
HESS, HF
BETZIG, E
HARRIS, TD
PFEIFFER, LN
WEST, KW
[J]. SCIENCE, 1994, 264 (5166) : 1740 - 1745
[7] Near-field optical spectroscopy of localized and delocalized excitons in a single GaAs quantum wire -: art. no. 075313
Intonti, F
Emiliani, V
Lienau, C
Elsaesser, T
Nötzel, R
Ploog, KH
[J]. PHYSICAL REVIEW B, 2001, 63 (07)
[8] LOCALIZATION - THEORY AND EXPERIMENT
KRAMER, B
MACKINNON, A
[J]. REPORTS ON PROGRESS IN PHYSICS, 1993, 56 (12) : 1469 - 1564
[9] Lifshitz I. M., 1988, Introduction to the theory of disordered systems
[10] Mehta M.L., 1990, RANDOM MATRICES

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