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Now showing items 1-3 of 3

  • Electromagnetic resonances of a multilayer metal-dielectric stack 

    Gadsdon, Martyn Richard; Parsons, J.; Sambles, J. Roy (Optical Society of America, 2009)
    The electromagnetic resonances of multilayer metal–dielectric stacks are investigated. These structures support periodic bandpass regions, whose band edges may be predicted by considering the character of the fields inside ...
  • Optical resonances on sub-wavelength silver lamellar gratings 

    Gadsdon, Martyn Richard; Hooper, Ian R.; Sambles, J. Roy (Optical Society of America, 2008)
    The optical response of sub-wavelength silver lamellar gratings has been theoretically investigated. Two distinct types of resonance have been predicted for incident radiation with E-field perpendicular to the long axis ...
  • Surface plasmon polaritons on deep, narrow-ridged rectangular gratings 

    Gadsdon, Martyn Richard; Hooper, Ian R.; Hibbins, Alastair P.; Sambles, J. Roy (Optical Society of America, 2009)
    The dispersion diagrams of surface plasmon polaritons have been calculated for rectangular gratings, with very narrow wires, of varying depths. For gratings with a moderate height a family of vertical-standing-wave resonances ...