EFFECTS OF SURFACE-ROUGHNESS ON SURFACE-POLARITONS

被引：35

作者：

USHIODA, S

AZIZA, A

VALDEZ, JB

MATTEI, G

机构：

[1] Department of Physics, University of California, Irvine

[2] Laboratoire de Physique des Solides, Université Pierre et Marie Curie

[3] Newport Beach Research Center, Hughes Aircraft Co., Newport Beach, CA 92663

[4] Laboratori di Metodologie Avanzate Inorganiche, CNR, Roma

来源：

PHYSICAL REVIEW B | 1979年 / 19卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.19.4012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have studied the effect of surface roughness on the behavior of surface polaritons in samples of GaP by means of Raman scattering. The roughness of the surfaces of thin-slab samples ( 15 thickness) was controlled by the size of the final polishing powder and by etching and annealing. The surface-polariton linewidth broadens as the surface is roughened, and the dispersion curve is depressed below the theoretical value based on the flat-surface assumption. Both the increase in damping and the shift in frequency are well accounted for by existing theories. The most striking effect of surface roughness is the increase in the Raman-scattering intensity for which there is no adequate theoretical explanation. © 1979 The American Physical Society.

引用

页码：4012 / 4019

页数：8

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