OBSERVATION OF SURFACE-PLASMONS IN DOPED SUPERLATTICES USING FAR INFRARED ATTENUATED TOTAL REFLECTION

被引：11
|
作者：
DUMELOW, T
PARKER, TJ
TILLEY, DR
BEALL, RB
HARRIS, JJ
机构：
[1] UNIV ESSEX,DEPT PHYS,COLCHESTER CO4 3SQ,ESSEX,ENGLAND
[2] PHILIPS RES LABS,REDHILL RH1 5HA,SURREY,ENGLAND
来源：
SOLID STATE COMMUNICATIONS | 1991年 / 77卷 / 04期
关键词：
D O I：
10.1016/0038-1098(91)90830-O
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We report a series of attenuated total reflection (ATR) measurements on a multiply Si-delta-doped GaAs sample. A number of surface plasmon modes are observed, coupled to the GaAs phonons. A good description of the observed modes is obtained by considering the superlattice as a single uniaxial medium whose dielectric tensor has principal components determined using a bulk slab model. The position of the modes is sensitive to the distribution of free carriers between wells and barriers.
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页码：253 / 256
页数：4
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