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Modeling phonon-polariton generation and control in ferroelectric crystals

Author(s)
Chen, Zhao, S.M. Massachusetts Institute of Technology
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Massachusetts Institute of Technology. Dept. of Physics.
Advisor
Keith A. Nelson and J. David Litster.
Terms of use
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
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Abstract
In this thesis, we present simulations, using Finite Element Method (FEM), of phonon-polariton generation and coherent control in ferroelectric crystals LiNbO₃ and LiTaO₃ through nonlinear electro-optic interactions with ultrashort laser pulses. This direct space-time monitoring platform is used to investigate the nature of the excitation mechanism, the science of propagation in patterned structure, and the waveform control via multi-dimensional pulse shaping. Compared with previous simulation methods, this platform demonstrates considerable improvement in complex domain by achieving varied accuracy over space based on the level of interest of the region, which may facilitate scientific exploration in high power terahertz generation and polaritonic signal processing.
Description
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Physics, 2009.
 
Cataloged from PDF version of thesis.
 
Includes bibliographical references (p. 101-109).
 
Date issued
2009
URI
http://hdl.handle.net/1721.1/53237
Department
Massachusetts Institute of Technology. Dept. of Physics.
Publisher
Massachusetts Institute of Technology
Keywords
Physics.

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  • Physics - Master's degree

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