Browsing by Author "De Silva, Lakshman"

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Browsing by Author "De Silva, Lakshman"

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  • Wu, Qi; De Silva, Lakshman; Arnold, Matthew; Hodgkinson, Ian; Takeuchi, Eric (American Institute of Physics, 2004)
    We discuss the design and fabrication of optical filters that are transparent to a preferred linear polarization, but are partially or substantially reflective to the orthogonal linear polarization. The filters are fabricated ...
  • Hodgkinson, Ian; Wu, Qi; Arnold, Matthew; De Silva, Lakshman; Beydaghyan, Gisia; Kaminska, Kate; Robbie, Kevin (Optical Society of America, 2006)
    We present a design for a biaxial thin-film coated-plate polarizing beam splitter that transmits the p-polarized component of a beam of light without change of direction and reflects the s-polarized component. The beam ...
  • Hodgkinson, Ian; Wu, Qi; Arnold, Matthew; De Silva, Lakshman; Blaikie, Richard (Elsevier Inc, 2004)
    The physical vapour deposition process of serial bideposition is used to fabricate inorganic retardation plates of LaF3, NdF3, Sc2O3 and SmF3. For a deposition angle of 70? the form-birefringent materials exhibit linear ...
  • Hodgkinson, Ian; Wu, Qi; De Silva, Lakshman; Arnold, Matthew (Optical Society of America, 2004)
    The physical vapor deposition process of serial bideposition is adapted to the fabrication of uniaxial optical coatings. During the coating process the vapor impinges at an angle of incidence of about 70? on to the substrate, ...
  • De Silva, Lakshman; Hodgkinson, Ian; Murray, Petra; Wu, Qi; Arnold, Matthew; Leader, John; Mcnaughton, Andrew (Taylor & Francis, 2005)
    A parallel study of natural and nanoengineered structurally chiral reflecting coatings is described. It is shown that the nanostructures are different in a minor way but are optically equivalent. Refractive index matching ...
  • Hodgkinson, Ian; Wu, Qi; De Silva, Lakshman; Arnold, Matthew; Lakhtakia, Akhlesh; Mccall, Martin (Optical Society of America, 2005)
    The structure of an inorganic chiral medium represented as a stack of identical form-birefringent layers that twist steadily with increasing thickness is perturbed by realigning a fraction of each layer to a fixed direction. ...
  • Hodgkinson, Ian; Wu, Qi; De Silva, Lakshman; Arnold, Matthew; Mccall, Martin; Lakhtakia, Akhlesh (American Physical Society, 2003)
    We consider the circularly polarized localized modes of chiral photonic structures with combined central twist and isotropic layer defects. The general filter is shown to suffer from anomalous remittance and saturation of ...