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Chip-based spectroscopy using microresonator frequency combs

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dc.contributor.authorYu, Mengjie
dc.contributor.chairLipson, Michal
dc.contributor.committeeMemberRana, Farhan
dc.contributor.committeeMemberGaeta, Alexander L.
dc.date.accessioned2018-10-23T13:35:25Z
dc.date.available2020-08-22T06:00:31Z
dc.date.issued2018-08-30
dc.description.abstractThe development of a spectroscopy device on a chip that could realize real-time, label-free and high-throughput detection of trace molecules presents one of the biggest challenges in sensing. This is particularly challenging in the mid-infrared (mid-IR) domain where strong and characteristic molecular absorption occurs but optical sources are still in full development. In the past decade, there has been a remarkable development of a miniaturized optical frequency comb source using parametric nonlinear interactions in microresonators. Such integrated devices present as unique tools for direct generation of broadband mid-IR light and ultrafast acquisition speed of molecular absorption information. In this thesis, we address the microresonator technology for the generation of a broadband modelocked frequency comb in the mid-IR. The properties of such microcombs can be precisely controlled, tuned, and characterized. We show that microresonator-based combs is not only an ideal testbed for studying a variety of nonlinear dynamics but, more importantly, can be used to realize a silicon-based platform for vibrational spectroscopy. We demonstrate two different types of mid-IR microcomb-based spectroscopy, dual-comb spectroscopy, and scanning comb spectroscopy which are suitable for condensed phase study and trace gas sensing, respectively.
dc.identifier.doihttps://doi.org/10.7298/X4N8780W
dc.identifier.otherYu_cornellgrad_0058F_10930
dc.identifier.otherhttp://dissertations.umi.com/cornellgrad:10930
dc.identifier.otherbibid: 10489824
dc.identifier.urihttps://hdl.handle.net/1813/59728
dc.language.isoen_US
dc.rightsAttribution 4.0 International*
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/*
dc.subjectApplied physics
dc.subjectintegrated optics
dc.subjectmid-infrared optics
dc.subjectnonlinear photonics
dc.subjectoptical frequency combs
dc.subjectInfrared Spectroscopy
dc.subjectSilicon Photonics
dc.subjectOptics
dc.titleChip-based spectroscopy using microresonator frequency combs
dc.typedissertation or thesis
dcterms.licensehttps://hdl.handle.net/1813/59810
thesis.degree.disciplineElectrical and Computer Engineering
thesis.degree.grantorCornell University
thesis.degree.levelDoctor of Philosophy
thesis.degree.namePh. D., Electrical and Computer Engineering

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