Dispersion of surface plasmons in InSb-gratings
- 1 January 1974
- journal article
- research article
- Published by Springer Science and Business Media LLC in Applied Physics A
- Vol. 3 (1), 55-60
- https://doi.org/10.1007/bf00892334
Abstract
The reflection of a monochromatic plane electromagnetic wave by a grating consisting of grooves in the surface of a semiconductor plasma (InSb) is investigated theoretically, in particular in that region of frequencies where the complex permittivity of the semiconductor plasma has a negative real part. From the numerically obtained reflection factor pertaining to anH-polarized incident wave, the excitation and the dispersion of surface plasmons at the boundary of the medium is discussed. The grating problem is rigorously formulated as a boundary value problem employing a Green's function technique. Numerical results pertaining to the reflection factor are presented for different grating parameters.Keywords
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