Accession Number : AD0653202

Title :   WAVE PROPAGATION IN SEMICONDUCTORS WITH DRIFTING CARRIERS,

Corporate Author : NORGES TEKNISKE HOEGSKOLE TRONDHEIM DIV OF PHYSICAL ELECTRONICS

Personal Author(s) : Kuvas,Reidar

Report Date : MAR 1967

Pagination or Media Count : 76

Abstract : A macroscopic theory for propagation of plane RF waves in semiconductors is presented. The first part deals with an extrinsic semiconductor where the elementary modes and their dispersion relations are derived from the wave equation. General boundary conditions for a semi-infinite semiconductor bounding to vacuum are considered, and six possible modes of wave propagation are found. A general expression for the power density of a plane wave is derived and used to establish a criterion for active behaviour of the medium. Instability phenomena and their relation to possible amplifying and oscillating behaviour of the medium are considered. In the last part the analysis is extended to semiconductors having two types of carriers. The dispersion relations are derived. In particular, propagation of carrier waves in an electron-hole plasma and a two-valley semiconductor is considered. (Author)

Descriptors :   (*SEMICONDUCTORS, *PROPAGATION), ELECTROMAGNETIC RADIATION, STABILITY, ENERGY, POWER, DENSITY, BOUNDARY LAYER, VACUUM, EQUATIONS, THEORY, ELECTRIC FIELDS

Subject Categories : Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE