LONG-RANGE ANGULAR-CORRELATIONS OF WAVES IN A TUBE GEOMETRY

被引：11

作者：

ELIYAHU, D ^{[1
]}

BERKOVITS, R ^{[1
]}

KAVEH, M ^{[1
]}

机构：

[1] UNIV CALIF LOS ANGELES,DEPT PHYS,LOS ANGELES,CA 90024

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.43.13501

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We show the existence of unusual angular correlations for transmitted and reflected waves for a random medium in the shape of a long tube. The brightness of the speckle spot extends much above its normal angular size DELTA-theta = lambda/W (where W is the width of the tube) and falls off only as a power law with oscillatory strength. We show a gradual disappearance of the memory effect as the length of the tube exceeds its width. We have also performed numerical simulations that confirm our analytical expressions for the correlation functions C1 and C2 and are able to determine the constant background correlation C3.

引用

页码：13501 / 13505

页数：5

共 18 条

[1]

ALTSHULER BL, 1985, JETP LETT+, V42, P359

[2] MEMORY EFFECT OF WAVES IN DISORDERED-SYSTEMS - A REAL-SPACE APPROACH [J].