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Applications of Radio Frequency Resonant Cavities in Ultrafast Electron Microscopy

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Title: Applications of Radio Frequency Resonant Cavities in Ultrafast Electron Microscopy
Author(s): Hogan, John Thomas
Advisor(s): Schroeder, Andreas
Contributor(s): Grein, Christoph; Klie, Robert; Erricolo, Danilo; Nicholls, Alan; Schroeder, Andreas
Department / Program: Physics
Degree Granting Institution: University of Illinois at Chicago
Degree: PhD, Doctor of Philosophy
Genre: Doctoral
Subject(s): microscopy electron
Abstract: Radio frequency resonant cavities are becoming important components in the emerging field of Ultrafast Electron Microscopy, which aspires to bring Dynamic Transmission Electron Microscopy into the realm of sub-nanometer spatial resolution combined with sub-picosecond time resolution. To accomplish this goal, the time-varying electromagnetic fields of resonant cavities can be utilized for temporal focusing of laser-driven ultrafast electron pulses to be used for imaging. In this thesis I present the design and construction of a laser-synchronized dielectric-filled radio frequency resonant cavity used for temporal focusing. I also present the theoretical groundwork, design, and construction of a second resonant cavity for the purposes of phase synchronization and direct electron pulse duration measurement.
Issue Date: 2016-10-21
Type: Thesis
Rights Information: Copyright 2017 Hogan, John Thomas
Date Available in INDIGO: 2017-02-17
Date Deposited: December 2

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