Accession Number : AD0845627

Title :   Normal Modes of Carrier Waves in Semiconductor Plates.

Descriptive Note : Technical rept.,

Corporate Author : NORGES TEKNISKE HOEGSKOLE TRONDHEIM DIV OF PHYSICAL ELECTRONICS

Personal Author(s) : Blotekjaer, Kjell

Report Date : AUG 1968

Pagination or Media Count : 30

Abstract : A dispersion relation for waves in an extrinsic semiconductor plate or film with an applied electric field is derived. It is shown that there exists an infinite number of modes. An arbitrary perturbation can be expressed as a superposition of modes. Expressions for the expansion coefficients are derived. Finally, it is shown that a perturbation which is initially a plane wave in a thick plate, remains an approximate plane wave in a time interval corresponding to the decay time, except near the boundaries. Thus, an apparent discrepancy between the theories of infinite- and finite-dimension semiconductors is resolved. (Author)

Descriptors :   (*SEMICONDUCTORS, ELECTROMAGNETIC RADIATION), ELECTRIC FIELDS, DISPERSION RELATIONS, PERTURBATION THEORY, POTENTIAL THEORY, BOUNDARY VALUE PROBLEMS, SEMICONDUCTING FILMS, NORWAY.

Subject Categories : Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE