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Observation of Surface and Bulk Plasmons in Semiconductor Superlattices by T. Dumelow; A.A. Hamilton; T.J. Parker; D.R. Tilley; B. Samson; S.R.P. Smith; R.B. Beall; J.J. Harris is a scholarly article available to read on EtoBox.

What is Observation of Surface and Bulk Plasmons in Semiconductor Superlattices about?

We report far infrared measurements of oblique incidence power reflectivity and attenuated total reflection (ATR) on multiply Si 5--doped GaAs samples. The reflectivity spectrum in s-polarisation probes the in-plane component of the superlattice dielectric function, and is sensitive to the overall 3D electron density. The p-polarisation spectrum, however, also probes the out-of-plane component, resulting in an extra mode which is sensitive to the distribution of free electrons between wells and barriers. The p-polarisation ATR spectrum shows surface modes which are also sensitive to this distribution. The results are compared with a bulk slab model of the dielectric function.

Author

T. Dumelow; A.A. Hamilton; T.J. Parker; D.R. Tilley; B. Samson; S.R.P. Smith; R.B. Beall; J.J. Harris

Publisher

Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV (ISSN 0749-6036)

Published

1991

Language

EN