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dc.contributor.authorHan, Chien-Wei.
dc.creatorHan, Chien-Wei.en_US
dc.date.accessioned2011-10-31T18:38:22Z
dc.date.available2011-10-31T18:38:22Z
dc.date.issued1995en_US
dc.identifier.urihttp://hdl.handle.net/10150/187379
dc.description.abstractThe diffraction characteristics of light from gratings formed in anisotropic volume and surface-relief gratings are examined. The rigorous coupled-wave equations for computing diffraction efficiencies and polarization of light from a volume grating formed in anisotropic substrates are derived. A grating made in a uniaxial birefringent material with its grating vector within the plane of incidence has the unique property that the incident and diffracted light may have different polarization. A holographic polarization selective grating was designed and made in dichromated gelatin and experimentally tested in a magneto-optic head tester. The performance of the grating was compared to that of a polarization beamsplitter cube. The coupled-wave equations for anisotropic volume gratings are modified to compute efficiencies from surface relief gratings. The method involves applying the Fourier series expansion on the nine permittivity elements in a tensor and subtracting the corresponding elements in the tensor describing the adjacent medium The enhanced birefringence effects which result from sub-wavelength period gratings made in a uniaxial material are theoretically investigated. When the natural optical axis and the induced optical axis are parallel or perpendicular to each other within the surface plane, the phase shift varies linearly with the thickness of the grating. When the two axes have an angular separation between them and lie within the surface plane, the phase shift varies nonlinearly with the thickness of the grating.
dc.language.isoenen_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.titlePolarization properties of gratings made in uniaxial birefringent materials.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
dc.contributor.chairKostuk, Raymonden_US
thesis.degree.grantorUniversity of Arizonaen_US
thesis.degree.leveldoctoralen_US
dc.contributor.committeememberBurke, Jamesen_US
dc.contributor.committeememberLi, Lifengen_US
dc.identifier.proquest9620435en_US
thesis.degree.disciplineOptical Sciencesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.namePh.D.en_US
dc.description.noteThis item was digitized from a paper original and/or a microfilm copy. If you need higher-resolution images for any content in this item, please contact us at repository@u.library.arizona.edu.
dc.description.admin-noteOriginal file replaced with corrected file October 2023.
refterms.dateFOA2018-06-23T15:29:28Z
html.description.abstractThe diffraction characteristics of light from gratings formed in anisotropic volume and surface-relief gratings are examined. The rigorous coupled-wave equations for computing diffraction efficiencies and polarization of light from a volume grating formed in anisotropic substrates are derived. A grating made in a uniaxial birefringent material with its grating vector within the plane of incidence has the unique property that the incident and diffracted light may have different polarization. A holographic polarization selective grating was designed and made in dichromated gelatin and experimentally tested in a magneto-optic head tester. The performance of the grating was compared to that of a polarization beamsplitter cube. The coupled-wave equations for anisotropic volume gratings are modified to compute efficiencies from surface relief gratings. The method involves applying the Fourier series expansion on the nine permittivity elements in a tensor and subtracting the corresponding elements in the tensor describing the adjacent medium The enhanced birefringence effects which result from sub-wavelength period gratings made in a uniaxial material are theoretically investigated. When the natural optical axis and the induced optical axis are parallel or perpendicular to each other within the surface plane, the phase shift varies linearly with the thickness of the grating. When the two axes have an angular separation between them and lie within the surface plane, the phase shift varies nonlinearly with the thickness of the grating.


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