Publication:
MEMS terahertz focal plane array with optical readout

Authors
Gonzalez, Hugo A., Jr.
Subject Authors
THz
terahertz
QCL
metamaterial
imaging
optical readout
Avisors
Karunasiri, Gamani
Alves, Fabio D.P.
Date of Issue
2016-06
Date
Jun-16
Publisher
Monterey, California: Naval Postgraduate School
Language
Abstract
The terahertz (THz) spectral range remains a relatively untapped portion of the electromagnetic spectrum. THz radiation's unique ability to penetrate non-metallic materials presents an exciting opportunity for many imaging applications. The purpose of this research is to investigate a unique imaging method using a THz radiation source and metamaterial absorber. By using a metamaterial absorber, the THz detection frequency of interest can be tuned by controlling geometrical parameters with nearly 100% absorption. THz sensing can be achieved by integrating a metamaterial absorber with bi-material legs to form a sensor. Moveable mirror-like surfaces on the backside of the metamaterial under THz absorption can cause a deflection of visible light and from it, the original image can be reconstructed using an optical readout system. In this thesis, the construction of the optical readout system for characterization of sensor pixels as well as THz imaging is described.
Type
Thesis
Description
Series/Report No
Department
Physics
Other Units
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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