2026-09-19T06:11:55Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/362192022-01-13T07:54:33Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
W. Craig Carter.
Cogswell, Daniel A. (Daniel Aaron)
Massachusetts Institute of Technology. Dept. of Materials Science and Engineering.
Massachusetts Institute of Technology. Department of Materials Science and Engineering
2007-02-21T13:08:54Z
2007-02-21T13:08:54Z
2006
2006
http://hdl.handle.net/1721.1/36219
76907057
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2006.
Includes bibliographical references (leaves 77-79).
Software was developed for solving Maxwell's equations using the finite-difference time-domain method, and was used to study 2D and 3D dielectric composites. The software was written from the ground up to be fast, extensible, and generalized for solving any finite difference problem. The code supports parallelization, allowing solutions to be obtained quickly using a beowulf cluster. An extension to the basic FDTD plane wave source was derived, allowing for the creation of angled, periodic, unidirectional plane waves on a square grid. 1D photonic crystal stacks were arranged in a square array and it was discovered that sizeable bandgaps for 2D and 3D geometries appear along the principle axes for different polarizations of the structure. Furthermore, bandgaps in different directions and polarizations could be made to overlap for reasonably large frequency ranges. The structure show promise for use as a low-threshold lasing and may be optimized to produce a complete photonic bandgap.
by Daniel A. Cogswell.
S.M.
79 leaves
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.
http://dspace.mit.edu/handle/1721.1/7582
Materials Science and Engineering.
Development of multifunctional software for evaluating the photonic properties of new dielectric composite geometries
Thesis
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Publication
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