Design and fabrication of sharp bend photonic crystal slab waveguides
Name
48984240-MIT.pdf
Description
Full printable version
Size
7.24 MB
Format
Adobe PDF
Checksum (MD5)
f94d89e88f7d7b0eb0160d229e5f13cd
Author(s)
Assefa, Solomon, 1979-
Advisor(s)
Leslie A. Kolodziejski.
Date Issued
2001
Publisher
Massachusetts Institute of Technology
Abstract
A periodic arrangement of atoms in a crystal presents a periodic potential for electrons. The bragg diffraction of electrons from the atoms may lead to a band gap, which represents a range of frequencies the electrons cannot have in the crystal. An analogous effect takes place in photonic crystals, which are periodic arrangement of layers of dielectric media. Scattering at the interface of the different layers produces a band gap for photons. The current effort to make integrated optical chips requires guiding light around sharp corners with a radius of curvature on the order of a wavelength. Photonic crystals serve this purpose by providing efficient sharp bend waveguides. An array of defects in a photonic crystal localizes modes in the band gap. This effect is used to build linear and 900 bend waveguides.
Description
Thesis (M.Eng. and S.B.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science; and, (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2001.
Includes bibliographical references (leaves 70-71).
Subjects
Electrical Engineering and Computer Science.
Physics.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Department of Physics
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