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dc.contributor.authorKeshavarz Akhlaghi, Mohsen
dc.date.accessioned2011-12-21 19:15:07 (GMT)
dc.date.available2011-12-21 19:15:07 (GMT)
dc.date.issued2011-12-21T19:15:07Z
dc.date.submitted2011
dc.identifier.urihttp://hdl.handle.net/10012/6416
dc.description.abstractThe quantum properties of electromagnetic radiation at single photon level promise to offer what are classically inaccessible. Single photon sources and detectors are therefore on demand for exploiting these properties in practical applications, including but not limited to quantum information processing and communication. In this thesis, I advance Superconducting Nanowire Single Photon Detectors (SNSPD) both in terms of models describing their operation, and their performance. I report on characterization, semi-empirical modeling, quantum-optical modeling and detector tomography. The results provide more accurate methods and formulations to characterize and mathematically describe the detectors, valuable findings from both application and device points of views. I also introduce the concept of Gated SNSPDs, show how to implement and how to characterize them. Through series of theoretical and experimental investigations, I show performance advantages of Gated SNSPDs in terms of dead time and dark count rate, important figures for many applications like quantum key distribution. The ultimate limitations of gated operation are also explored by physical modeling and simulation steps.en
dc.language.isoenen
dc.publisherUniversity of Waterlooen
dc.subjectSuperconducting Nanowire Single Photon Detectorsen
dc.subjectSingle Photon Detectorsen
dc.titleNonlinearity and Gating in Superconducting Nanowire Single Photon Detectorsen
dc.typeDoctoral Thesisen
dc.comment.hidden1- A publication is pending and I wish to delay web access/display for four months from the date of submission. 2- None of my publishers require written permission for using my published paper in my other works.en
dc.pendingfalseen
dc.subject.programElectrical and Computer Engineeringen
uws-etd.degree.departmentElectrical and Computer Engineeringen
uws-etd.degreeDoctor of Philosophyen
uws.typeOfResourceTexten
uws.peerReviewStatusUnrevieweden
uws.scholarLevelGraduateen


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