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McCaughan, Adam Nykoruk Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science 2011-02-24T14:58:31Z 2011-02-24T14:58:31Z 2010 2010 http://hdl.handle.net/1721.1/61317 699758797 Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010. Cataloged from PDF version of thesis. Includes bibliographical references (p. 94-96). Over the last decade, quantum information experiments with trapped ions have demonstrated essential steps towards quantum computing and quantum simulation. Large fields are required to achieve strong coupling to the ions via dipolar interactions, and so we fabricated transmission line microresonators-capable of producing large fields in a standing wave at resonance-for eventual integration into 2D ion trap structures. The resonators were superconducting to minimize loss and maximize quality factor. We fabricated the resonators as two dimensional coplanar waveguides in niobium on R-plane sapphire using optical lithography. Resist was patterned on the niobium using optical lithography, developed, then reactive-ion etched to transfer the pattern into the niobium. The resonators were cooled and tested in a cryogenic probe station and characterized with a network analyzer. Additionally, the resonator geometry was reproduced in commercial microwave simulation software. Results from our fabricated resonators showed first-resonance quality factors of 1.2x 104 at 3.23 GHz at device temperatures of 3-4 K. by Adam Nykoruk McCaughan. M.Eng. 96 p. eng Massachusetts Institute of Technology M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 Electrical Engineering and Computer Science. High-Q superconducting coplanar waveguide resonators for integration into molecule ion traps Fabrication and characterization of superconducting coplanar waveguide microresonators Thesis application/pdf false Publication unknown unknown <Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="605d1bbb-0eda-410a-9c05-ee07e8bd6744"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>eng</Language> <Title>High-Q superconducting coplanar waveguide resonators for integration into molecule ion traps</Title> <Subtitle>Fabrication and characterization of superconducting coplanar waveguide microresonators</Subtitle> <PublishedIn> <Publication> </Publication> </PublishedIn> <PublicationDate>2010</PublicationDate> <Authors> <Author> <DisplayName>McCaughan, Adam Nykoruk</DisplayName> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>Massachusetts Institute of Technology</DisplayName> <OrgUnit /> </Publisher> </Publishers> <License>http://dspace.mit.edu/handle/1721.1/7582</License> <Keyword>Electrical Engineering and Computer Science.</Keyword> <Abstract>Over the last decade, quantum information experiments with trapped ions have demonstrated essential steps towards quantum computing and quantum simulation. Large fields are required to achieve strong coupling to the ions via dipolar interactions, and so we fabricated transmission line microresonators-capable of producing large fields in a standing wave at resonance-for eventual integration into 2D ion trap structures. The resonators were superconducting to minimize loss and maximize quality factor. We fabricated the resonators as two dimensional coplanar waveguides in niobium on R-plane sapphire using optical lithography. Resist was patterned on the niobium using optical lithography, developed, then reactive-ion etched to transfer the pattern into the niobium. The resonators were cooled and tested in a cryogenic probe station and characterized with a network analyzer. Additionally, the resonator geometry was reproduced in commercial microwave simulation software. Results from our fabricated resonators showed first-resonance quality factors of 1.2x 104 at 3.23 GHz at device temperatures of 3-4 K.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication>