Terahertz waveguide spectroscopy of two-dimensional plasmons in GaAs
Name
711104935-MIT.pdf
Description
Full printable version
Size
9.16 MB
Format
Adobe PDF
Checksum (MD5)
67f5648891bbe0d80b207b0b44da6924
Author(s)
Harris, C. Thomas (Charles Thomas)
Advisor(s)
Rajeev J. Ram.
Alternative Title
THz waveguide spectroscopy of two-dimensional plasmons in GaAs
Terahertz waveguide spectroscopy of 2D plasmons in GaAs
THz waveguide spectroscopy of 2-dimensional plasmons in GaAs
Date Issued
2010
Publisher
Massachusetts Institute of Technology
Abstract
The electrical characteristics of high-mobility, two-dimensional electron gas (2DEG) systems, such as GaAs quantum wells, have been well-studied at low frequencies and in extreme conditions of high magnetic fields and ultralow temperatures. While high-frequency excitations of 2DEGs have been examined to some extent from microwave to terahertz (THz) frequencies, a fundamental understanding of the physical properties of 2DEGs in this range have by no means been mastered. To address this matter, this thesis focused on studying a fundamental, high-frequency collective excitation, known as the plasmon, to better understand plasmon damping and coupling mechanisms in GaAs quantum well 2DEGs. The experiments utilized THz waveguide spectroscopy to study the low-temperature behavior of 2D plasmons.
Description
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 85-88).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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