CALCULATION OF RAMAN-SCATTERING BY ACOUSTIC PHONONS IN SUPERLATTICES

被引：16
|
作者：
PILLA, O [1 ]
LEMOS, V [1 ]
MONTAGNA, M [1 ]
机构：
[1] UNIV TRENT,DIPARTIMENTO FIS,I-38050 TRENT,ITALY
来源：
PHYSICAL REVIEW B | 1994年 / 50卷 / 16期
关键词：
D O I：
10.1103/PhysRevB.50.11845
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report on the calculation of low-frequency Raman scattering by longitudinal acoustic phonons in superlattices. The phonons are treated as elastic waves propagating in a continuum and their mode patterns are calculated by a transfer-matrix method. The electromagnetic propagation is calculated neglecting reflections and refractions at the interfaces, through the use of the same index of refraction for both constituent materials. The use of a complex refraction index allows for absorption effects to be included. The suitability of the numerical calculation for modeling superlattices is demonstrated. © 1994 The American Physical Society.
引用
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页码：11845 / 11849
页数：5
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