HIGH-PRESSURE LOW-TEMPERATURE OPTICAL DEPHASING OF RHODAMINE-101 IN PMMA

被引：18

作者：

BAER, BJ ^{[1
]}

CROWELL, RA ^{[1
]}

CHRONISTER, EL ^{[1
]}

机构：

[1] UNIV CALIF RIVERSIDE,DEPT CHEM,RIVERSIDE,CA 92521

来源：

CHEMICAL PHYSICS LETTERS | 1995年 / 237卷 / 3-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0009-2614(95)00312-R

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High pressure (0-30 kbar) is used to investigate the effect of increased density on the temperature-dependent optical dephasing of rhodamine 101 (Rh101) in polymethyl methacrylate (PMMA). Photon echo measurements have been performed on Rh101-doped PMMA at temperatures between 1.2 and 2.1 K at pressures up to 30 kbar. The 20% volume compression at 30 kbar resulted in little change in either the magnitude or the temperature dependence of the optical dephasing rate. The pressure insensitive homogeneous linewidth Gamma = 110 T-1.35 MHz is discussed in terms of the two level system model often used to characterize the optical dynamics of glasses.

引用

页码：380 / 386

页数：7

共 35 条

[1] ANOMALOUS LOW-TEMPERATURE THERMAL PROPERTIES OF GLASSES AND SPIN GLASSES [J].