Document Type

Dissertation

Date of Degree

Fall 2010

Degree Name

PhD (Doctor of Philosophy)

Degree In

Physics

First Advisor

John Prineas

Abstract

Bragg spaced quantum wells represent a unique class of resonant photonic materials, wherein a photonic bandgap is created by the periodic spacing of quantum wells and the associated variation in the complex susceptibility (index and absorption) of the material. Interest in BSQWs has grown in the past decade due to their large ultrafast nonlinearities and the corresponding large ultrafast reflectivity changes and transmissivity. These nonlinearities are of particular interest in areas of communication technology, where ultrafast all-optical logic components have become increasingly in demand. This research will further investigate BSQWs and the for the first time effects of spin-dependent nonlinear excitation on their photonic band structures. It will also investigate how these effects can be used in all-optical polarization switching and tunable optical buffer (slow light) applications.

Keywords

all-optical switch, nonlinear optics, photonic, quantum wells, slow light

Pages

xxii, 117 pages

Bibliography

Includes bibliographical references (pages 108-117).

Copyright

Copyright 2010 Wesley James Johnston

Included in

Physics Commons

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