Open AccessPOLARITIONS IN FINITE SUPERLATTICES
Author(s) -
Huidong Shi,
Cai Jian-Hua
Publication year - 1988
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.37.683
Subject(s) - superlattice , dispersion relation , computation , condensed matter physics , physics , work (physics) , quantum mechanics , mathematics , algorithm
We generalize our former work to superlattices with finite number of layers, and obtain the corresponding dispersion relations for the bulk as well as the surface modes. Numerical computations show a superlattice with 20 supercells behaves already very near to an infinite su-perlattice with regard to the propagation characteristics of electromagnetic waves. However, important differences appear when the number of supercells is small.