COHERENT PROPAGATION AND QUANTUM BEATS OF QUADRUPOLE POLARITONS IN CU2O

被引：2

作者：

FROHLICH, D

KULIK, A

UEBBING, B

MYSYROWICZ, A

LANGER, V

STOLZ, H

VONDEROSTEN, W

机构：

[1] ECOLE POLYTECH,OPT APPL ENSTA LAB,F-91128 PALAISEAU,FRANCE

[2] UNIV GESAMTHSCH PADERBORN,W-4790 PADERBORN,GERMANY

来源：

JOURNAL OF LUMINESCENCE | 1992年 / 53卷 / 1-6期

关键词：

D O I：

10.1016/0022-2313(92)90162-3

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Coherent propagation of quadrupole polaritons in CU2O is demonstrated by time resolved spectroscopy. Clearly resolved oscillations with time-dependent Period are observed. The experimental results are quantitatively explained as resulting from quantum beats between the two branches of the exciton-polariton. The analysis yields the homogeneous line width of 6.5 X 10(-7)eV and an oscillator strength of f = 3.6 X 10(-9). Measurements at intensities higher than 10(8) W/cm2 lead to faster decay and a clear reduction of the beat amplitude.

引用

页码：309 / 312

页数：4

共 14 条

[1]

AGRANOVICH VM, 1984, SPRINBER SERIES SOLI, V42

[2] ABSORPTION QUANTUM BEATS OF MAGNETOEXCITONS IN GAAS HETEROSTRUCTURES [J].