PROPAGATION BEATS OF QUADRUPOLE POLARITONS IN CU2O

被引：35

作者：

FROHLICH, D

KULIK, A

UEBBING, B

LANGER, V

STOLZ, H

VONDEROSTEN, W

机构：

[1] Institut Für Physik, Universität Dortmund

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1992年 / 173卷 / 01期

关键词：

D O I：

10.1002/pssb.2221730104

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Time-resolved measurements of transmission in resonance with the 1 S quadrupole polariton in Cu2O reveal a long-lasting signal which is modulated by pronounced oscillations with time-dependent period. These oscillations are interpreted as "propagation beats", which are caused by superposition of excited states of both polariton branches which propagate coherently through the crystal. At higher excitation intensities the decay becomes faster and the beats disappear. Magneto-quantum beats are also influenced significantly by propagation effects in transmission measurements.

引用

页码：31 / 40

页数：10

共 14 条

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