Oscillator strength transfer from X to X+ in a CdTe quantum-well microcavity

被引：23

作者：

Brunhes, T ^{[1
]}

André, R ^{[1
]}

Arnoult, A ^{[1
]}

Cibert, J ^{[1
]}

Wasiela, A ^{[1
]}

机构：

[1] Univ Grenoble 1, Spectrometrie Phys Lab, CNRS, UMR 5588, F-38402 St Martin Dheres, France

来源：

PHYSICAL REVIEW B | 1999年 / 60卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.60.11568

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on a study of oscillator strength transfer from the neutral exciton X to the positively charged exciton X+, in a modulation doped CdTe quantum well embedded in a microcavity. The strong-coupling regime between X or X+ and the cavity photon mode has been analyzed for various hole densities p and the oscillator strengths f(X) and f(X+) are derived accurately from polariton line energies. Far increasing p, f(X) increases and f(X), is shown to decrease linearly with f(X+). We propose a model that accounts far those oscillator strength variations. This model relies on an effective cross section SX+ = 6.6 X 10(4) Angstrom(2) for the creation of X+ in the vicinity of a hole, and a saturation density equal to 10(11) cm(-2) for phase-space filling effect, [S0163-1829(99)04539-7].

引用

页码：11568 / 11571

页数：4

共 20 条

[11] MOBILE AND IMMOBILE EFFECTIVE-MASS-PARTICLE COMPLEXES IN NONMETALLIC SOLIDS [J].

LAMPERT, MA .

PHYSICAL REVIEW LETTERS, 1958, 1 (12) :450-453

[12] Relative absorption strengths of neutral and negatively charged excitons in CdTe quantum wells [J].

Miller, RB ;

Baron, T ;

Cox, RT ;

Saminadayar, K .

JOURNAL OF CRYSTAL GROWTH, 1998, 184 :822-825

[13] QUANTUM-WELL EXCITONS IN SEMICONDUCTOR MICROCAVITIES - UNIFIED TREATMENT OF WEAK AND STRONG-COUPLING REGIMES [J].

SAVONA, V ;

ANDREANI, LC ;

SCHWENDIMANN, P ;

QUATTROPANI, A .

SOLID STATE COMMUNICATIONS, 1995, 93 (09) :733-739

[14] THEORY OF TRANSIENT EXCITONIC OPTICAL NONLINEARITIES IN SEMICONDUCTOR QUANTUM-WELL STRUCTURES [J].

SCHMITTRINK, S ;

CHEMLA, DS ;

MILLER, DAB .

PHYSICAL REVIEW B, 1985, 32 (10) :6601-6609

[15] LINEAR AND NONLINEAR OPTICAL-PROPERTIES OF SEMICONDUCTOR QUANTUM WELLS [J].

SCHMITTRINK, S ;

CHEMLA, DS ;

MILLER, DAB .

ADVANCES IN PHYSICS, 1989, 38 (02) :89-188

[16] MAGNETOOPTICAL SPECTROSCOPY OF POSITIVELY CHARGED EXCITONS IN GAAS QUANTUM-WELLS [J].

SHIELDS, AJ ;

OSBORNE, JL ;

SIMMONS, MY ;

PEPPER, M ;

RITCHIE, DA .

PHYSICAL REVIEW B, 1995, 52 (08) :R5523-R5526

[17] QUENCHING OF EXCITONIC OPTICAL-TRANSITIONS BY EXCESS ELECTRONS IN GAAS QUANTUM-WELLS [J].

SHIELDS, AJ ;

PEPPER, M ;

RITCHIE, DA ;

SIMMONS, MY ;

JONES, GAC .

PHYSICAL REVIEW B, 1995, 51 (24) :18049-18052

[18] Strong coupling phenomena in quantum microcavity structures [J].

Skolnick, MS ;

Fisher, TA ;

Whittaker, DM .

SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 1998, 13 (07) :645-669

[19]

STEBE B, 1995, SUPERLATTICE MICROST, V5, P976

[20]

WEISBUCH C, 1992, PHYS REV LETT, V69, P331

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