Dynamically programmable surfaces for high-speed optical modulation and detection
Name
1262873727-MIT.pdf
Size
36.37 MB
Format
Adobe PDF
Checksum (MD5)
3e0d83c3db519ac907b1f9c9869491a6
Author(s)
Peng, Cheng,
Ph. D.
Massachusetts Institute of Technology.
Advisor(s)
Dirk R. Englund.
Date Issued
2020
Publisher
Massachusetts Institute of Technology
Abstract
Dynamically programmable surfaces for spatiotemporal control of light are crucial to many optoelectronic technologies including high-speed optical communication, display and projection, autonomous driving, optical information processing, imaging, and fast programmable optical tweezers. Currently available electro-optically tunable components are often bulky, inefficient, and have limited operation speeds. This thesis describes the development of a compact, high-speed, electro-optic spatial light modulator (SLM) architecture based on two-dimensional arrays of tunable microcavities. Optimized microcavity designs can enable high-speed, high diffraction efficiency SLMs with standard-CMOS-compatible driving voltages. An electro-optic material, graphene, is also investigated in detail. A graphene carrier density spatiotemporal modulation technique is proposed and experimentally validated. This technique enables the demonstration of a compact graphene thermopile in the mid-infrared wavelengths and paves the way for future implementations of graphene plasmonic metasurfaces.
Description
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, May, 2020
Cataloged from the official PDF of thesis.
Includes bibliographical references (pages 123-133).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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