The optical properties of a ferrofluid in applied magnetic field: hyperbolic metamaterial

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dc.contributor.advisorSmolyaninova, Vera N.
dc.contributor.authorYost, Bradley J.
dc.contributor.departmentTowson University. Department of Physics, Astronomy, and Geosciences
dc.date.accessioned2015-12-17T19:33:37Z
dc.date.available2015-12-17T19:33:37Z
dc.date.issued2014-07-24
dc.date.submitted2014-05
dc.description(M.S.) -- Towson University, 2014.
dc.description.abstractIn this study we examine the optical properties of a cobalt based ferrofluid when a magnetic field is applied. By performing optical transmission measurements we show that when a strong enough magnetic field is applied the ferrofluid behaves as a hyperbolic metamaterial. A hyperbolic metamaterial is a material that has unique optical properties which cause it to behave as a metal for one polarization direction of light and as a dielectric for the orthogonal polarization direction. By performing Fourier Transform Infrared (FTIR) spectroscopy we further demonstrate the unique properties of ferrofluid as hyperbolic metamaterial such as extreme sensitivity of the material to monolayer coatings of cobalt nanoparticles, which is relevant to applications in biological and chemical sensing. We also show that the ferrofluid can be used as a Minkowski spacetime analogue, where thermal fluctuations in our ferrofluid look similar to the creation and disappearance of individual Minkowski spacetimes.
dc.formatapplication/pdf
dc.format.extentviii, 32 pages
dc.genretheses
dc.identifierdoi:10.13016/M2R12K
dc.identifier.otherTSP2014Yost
dc.identifier.urihttp://hdl.handle.net/11603/2019
dc.language.isoeng
dc.relation.ispartofTowson University Archives
dc.relation.ispartofTowson University Electronic Theses and Dissertations
dc.relation.ispartofTowson University Institutional Repository
dc.rightsCopyright protected, all rights reserved.
dc.titleThe optical properties of a ferrofluid in applied magnetic field: hyperbolic metamaterial
dc.typeText
dcterms.accessRightsThere are no restrictions on access to this document. An internet release form signed by the author to display this document online is on file with Towson University Special Collections and Archives.

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