POLARIZATION DEPENDENCE OF BEATING PHENOMENA AT THE ENERGETICALLY LOWEST EXCITON TRANSITION IN GAAS QUANTUM-WELLS

被引：84

作者：

MAYER, EJ

SMITH, GO

HEUCKEROTH, V

KUHL, J

BOTT, K

SCHULZE, A

MEIER, T

KOCH, SW

THOMAS, P

HEY, R

PLOOG, K

机构：

[1] UNIV MARBURG,DEPT PHYS,D-35032 MARBURG,GERMANY

[2] UNIV MARBURG,CTR MAT SCI,D-35032 MARBURG,GERMANY

[3] PAUL DRUDE INST FESTKORPELEKTR,D-10177 BERLIN,GERMANY

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.51.10909

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report time-resolved degenerate four-wave-mixing experiments on a high-quality single GaAs quantum well. The signals for parallel and cross-polarized exciting pulses show pronounced quantum beats with different frequencies corresponding to the heavy/light-hole splitting and the biexciton binding energy, respectively. Comparison of the experimental data with solutions of the optical Bloch equations for a phenomenological model system shows that these features result from strong contributions of the biexcitonic state. The importance of biexcitons to the nonlinear coherent response of the two-dimension exciton is further confirmed by the frequency dependence of the time-integrated four-wave-mixing signal amplitudes measured for the two polarization geometries. © 1995 The American Physical Society.

引用

页码：10909 / 10914

页数：6

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