BIEXCITONIC EFFECTS IN TRANSIENT NONLINEAR-OPTICAL EXPERIMENTS IN QUANTUM-WELLS

被引：63

作者：

FINKELSTEIN, G ^{[1
]}

BARAD, S

CARMEL, O

BARJOSEPH, I

LEVINSON, Y

机构：

[1] WEIZMANN INST SCI,DEPT PHYS,IL-76100 REHOVOT,ISRAEL

[2] HEBREW UNIV JERUSALEM,RACAH INST,IL-91904 JERUSALEM,ISRAEL

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.47.12964

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a model for the nonlinear optical response of quantum wells, which includes biexcitons. We show that within this model, the interaction of two laser pulses, mediated by the nonlinear susceptibility, results in oscillations and in coupling between sigma+ and sigma- excitons. This explains the temporal behavior of the differential absorption and four-wave mixing in recent experiments [Phys. Rev. Lett. 68, 349 (1992); 68, 1880 (1992)]. The oscillations have a frequency equal to the biexciton binding energy, and are different from known interference and quantum beat phenomena.

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页码：12964 / 12967

页数：4

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