Phonon-polariton modes in superlattices: The effect of spatial dispersion
- 15 December 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 38 (17) , 12369-12376
- https://doi.org/10.1103/physrevb.38.12369
Abstract
The equation of motion for phonons in superlattices including the retardation effect is derived. It is shown that in superlattices additional polariton modes exist due to the spatial dispersion of the optical modes of the constituent bulk materials. The reflectivity spectra of superlattices are also examined.Keywords
This publication has 15 references indexed in Scilit:
- Lattice dynamics of GaAs/AlAs superlatticesSolid State Communications, 1987
- Anisotropy of optical phonons in GaAs-AlAs superlatticesPhysical Review Letters, 1987
- Longitudinal polar optical modes in semiconductor quantum wellsJournal of Physics C: Solid State Physics, 1986
- Polariton modes of semiconductor superlattice systemsSolid State Communications, 1985
- Polariton modes in superlattice mediaSolid State Communications, 1984
- Collective excitations of semi-infinite superlattice structures: Surface plasmons, bulk plasmons, and the electron-energy-loss spectrumPhysical Review B, 1984
- Electron–Phonon Interaction in Periodic Two‐Layer StructuresPhysica Status Solidi (b), 1983
- Electromagnetic propagation in periodic stratified media I General theory*Journal of the Optical Society of America, 1977
- Optics of Polaritons in Bounded MediaPhysical Review B, 1972
- Phonon and Polariton Modes in a SuperlatticeApplied Physics Letters, 1972