High field, high efficiency terahertz pulse generation by optical rectification
Name
880414792-MIT.pdf
Description
Full printable version
Size
3.55 MB
Format
Adobe PDF
Checksum (MD5)
265597b89157cf5de00d9557f2ef5bd8
Author(s)
Huang, Wenqian Ronny
Advisor(s)
Franz X. Kä̈rtner and Erich P. Ippen.
Alternative Title
High field, high efficiency THz pulse generation by optical rectification
Date Issued
2014
Publisher
Massachusetts Institute of Technology
Abstract
The great difficulty of producing high intensity radiation in the terahertz (THz) spectral region by conventional electronics has stimulated interest in development of sources based on photonics. Optical rectification in lithium niobate is an attractive approach, because it supports high generation efficiencies, uses low cost, bulk LN crystals, and is powered by common Yb-doped lasers at wavelengths of around 1 Pm. In this work, a theoretical framework for THz generation by optical rectification is developed. Several novel methods for optimizing the generation efficiency are shown, including pump beam imaging, pump pulse optimization, cryogenic cooling, and THz antirefiection coating. Finally, experimental results will be presented showing a THz generation efficiency of 3.7%, which is 10x higher than current state-of-the-art. The generated few-cycle THz pulses can be used for coherent control of electrons, setting the stage for compact, table-top accelerators.
Description
Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2014.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 51-55).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
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