Photon-induced vortex-antivortex pair creation in superconducting films
Walko, Joseph Philip, II
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https://hdl.handle.net/2142/19382
Description
Title
Photon-induced vortex-antivortex pair creation in superconducting films
Author(s)
Walko, Joseph Philip, II
Issue Date
1995
Doctoral Committee Chair(s)
Van Harlingen, Dale J.
Department of Study
Physics
Discipline
Physics
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Physics, Condensed Matter
Physics, Optics
Engineering, Materials Science
Language
eng
Abstract
We have used a dc SQUID (Superconducting Quantum Interference Device) to study vortex-antivortex pair creation in both two-dimensional superconducting films and Josephson junction arrays in the presence of 850 nm light irradiation. Specifically the experiments aim to distinguish between the formation of vortex-antivortex pairs by single photon absorption and by thermal activation. The major objective for this experiment is to investigate the possibility of photon-induced vortex-antivortex pair creation.
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