Theory of optical-phonon interactions in a rectangular quantum wire

Michael A. Stroscio; Ki Wook Kim; Michael A. Littlejohn

doi:10.1117/12.24523

1 February 1991 Theory of optical-phonon interactions in a rectangular quantum wire

Michael A. Stroscio, Ki Wook Kim, Michael A. Littlejohn

Proceedings Volume 1362, Physical Concepts of Materials for Novel Optoelectronic Device Applications II: Device Physics and Applications; (1991) https://doi.org/10.1117/12.24523
Event: Physical Concepts of Materials for Novel Optoelectronic Device Applications, 1990, Aachen, Germany

Abstract

The Hamiltonian describing the iteraction of both confined longitudinal-optical and surface-optical photons with charge carriers is derived from the macroscopic dielectric continuum model for the case of a rectangular quantum wire where photon confinement occurs in two of the three spatial dimensions. The full interaction Hamiltonian is used to calculate the total scattering rate for electron-optical-phonon scattering of electrons traversing a GaAs square quantum wire. The results demonstrate that the interaction by the surface-optical phonon modes is very strong and may dominate over other scattering processes, especially with dimensions of about 100 A or less. A considerable decrease in the total scattering rate for optical phonons as a result of simple reduction in dimensionality is not observed in this study.

Citation Download Citation

Michael A. Stroscio, Ki Wook Kim, and Michael A. Littlejohn "Theory of optical-phonon interactions in a rectangular quantum wire", Proc. SPIE 1362, Physical Concepts of Materials for Novel Optoelectronic Device Applications II: Device Physics and Applications, (1 February 1991); https://doi.org/10.1117/12.24523

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