Efficient THz lasers and broadband amplifiers based on quantum cascade gain media
Name
900011415-MIT.pdf
Description
Full printable version
Size
14.55 MB
Format
Adobe PDF
Checksum (MD5)
74a6e31acc57c122cd614cb03573110c
Author(s)
Cai, Xiaowei, Ph.D. Massachusetts Institute of Technology
Advisor(s)
Qing Hu.
Alternative Title
Efficient Terahertz lasers and broadband amplifiers based on QC gain media
Date Issued
2014
Publisher
Massachusetts Institute of Technology
Abstract
One of the most important applications for Terahertz (THz) quantum cascade (QC) lasers is to provide compact and powerful frequency-stabilized solid-state sources as local oscillators in heterodyne receivers for astronomical studies. The first part of the thesis is dedicated to the device cavity design, fabrication and characterization of the microstrip antenna coupled third-order distributed feedback QC lasers aimed for 2.060 THz atomic oxygen line. THz travelling-wave QC amplifiers are highly desired to achieve broadband amplification of THz radiation in free space. The second part of the thesis focuses on the development of 4.3 THz travelling-wave QC amplifier by monolithically integrating horn antennas and attaching silicon lenses at the metal-metal waveguide facets.
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 105-110).
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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