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dc.contributor.advisorKarunasiri, Gamani
dc.contributor.advisorAlves, Fabio
dc.contributor.authorToh, Edwin
dc.dateSep-14
dc.date.accessioned2014-12-05T20:10:59Z
dc.date.available2014-12-05T20:10:59Z
dc.date.issued2014-09
dc.identifier.urihttp://hdl.handle.net/10945/44019
dc.descriptionApproved for public release; distribution is unlimiteden_US
dc.description.abstractIn this thesis, an optical readout scheme was successfully developed based on the Fourier 4F optical configuration and integrated with a custom-fabricated microelectromechanical system (MEMS)-based, terahertz (THz), detector array. The MEMS THz detector array and 4F Fourier optics were able to transduce the THz scene into an optical signal that was captured by a commercial charged coupled device (CCD) camera for generating images. A quantum cascade laser (QCL) provided the THz illumination for generating images while post-image processing performed background subtraction in order to obtain the THz scene. The Fourier 4F optical readout system that was implemented was able to profile the general shape of the QCL beam pattern and displayed good linearity of response of about 23 gray level values per Kelvin. The concept of optical readout from a micromechanical sensor array was also validated.en_US
dc.publisherMonterey, California: Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted.en_US
dc.titleImplementation of an optical readout system for high-sensitivity terahertz microelectromechanical sensor arrayen_US
dc.typeThesisen_US
dc.contributor.departmentPhysics
dc.subject.authorterahertz imageren_US
dc.subject.authorTerahertz MEMSen_US
dc.subject.authoroptical readouten_US
dc.description.serviceCaptain, Republic of Singapore Armyen_US
etd.thesisdegree.nameMaster of Science in Combat Systems Technologyen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineCombat Systems Technologyen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


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