Browsing General by Author "Botten, Lindsay"

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Browsing General by Author "Botten, Lindsay"

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  • Asatryan, Ara; Gredeskul, Sa; Botten, Lindsay; Byrne, Michael; Freilikher, Valentin; Shadrivov, Iv; Mcphedran, Ross; Kivshar, Y (Amer Physical Soc, 2010)
    We study the propagation and localization of classical waves in one-dimensional disordered structures composed of alternating layers of left-and right-handed materials (mixed stacks) and compare them with structures composed ...
  • Handmer, Casey; De Sterke, C; Mcphedran, Ross; Botten, Lindsay; Steel, Michael; Rahmani, Adel (Optical Society of America, 2010)
    We develop a way to enhance the amplitudes of the nonpropagating evanescent orders of resonant dielectric gratings. We use this blazing to design gratings with spectra tailored to generate steerable sub-Rayleigh field ...
  • White, Thomas; Mcphedran, Ross; Botten, Lindsay; Smith, Geoff; De Sterke, C (Optical Society of America, 2001)
  • Asatryan, Ara; Botten, Lindsay; Byrne, Michael; Nicorovici, Nicolae; Mcphedran, Ross; De Sterke, C; Robinson, Peter; Langtry, Tim (American Physical Soc, 2005)
    The conductance of photons in two-dimensional disordered photonic crystals is calculated using an exact multipole-plane wave method that includes all multiple scattering processes. Conductance fluctuations, the universal ...
  • White, Tom; Mcphedran, Ross; De Sterke, C; Botten, Lindsay; Steel, Michael (Optical Society of America, 2001)
  • Brownless, John; Mahmoodian, Sahand; Dossou, Kokou; Lawrence, Felix; Botten, Lindsay; De Sterke, C (Optical Society of America, 2010)
    We investigate the modes of coupled waveguides in a hexagonal photonic crystal. We find that for a substantial parameter range the coupled waveguide modes have dispersion relations exhibiting multiple intersections, which ...
  • Campbell, Samuel; Mcphedran, Ross; De Sterke, C; Botten, Lindsay (Optical Society of America, 2004)
    We describe the differential multipole method, an extended multipole method used to calculate the modes of microstructured optical fibers with noncircular inclusions. We use a multipole expansion centered on each inclusion ...
  • Asatryan, Ara; Robinson, Peter; Mcphedran, Ross; Botten, Lindsay; De Sterke, C; Nicorovici, Nicolae; Langtry, Tim (American Physical Soc, 2003)
  • Asatryan, Ara; Botten, Lindsay; De Sterke, C; Mcphedran, Ross; Robinson, Peter; Langtry, Tim (American Physical Soc, 2003)
  • Dossou, Kokou; Botten, Lindsay; De Sterke, C; Mcphedran, Ross; Asatryan, Ara; Chen, Swee; Brnovic, Jovana (Elsevier Science Bv, 2006)
    We use two-dimensional simulations to study the design of tapers to provide efficient, low reflection coupling between a waveguide in a two-dimensional photonic crystal (PC) and free space. We find that, largely independent ...
  • White, Thomas; Botten, Lindsay; De Sterke, C; Dossou, Kokou; Mcphedran, Ross (Optical Society of America, 2008)
    We consider the coupling into a slow mode that appears near an inflection point in the band structure of a photonic crystal waveguide. Remarkably, the coupling into this slow mode, which has a group index ng>1000, can be ...
  • De Sterke, C; Walker, Jacqueline; Dossou, Kokou; Botten, Lindsay (Optical Soc Amer, 2007)
    We study light coupling between two photonic crystal wave-guides, one of which supports slow light. We show theoretically that a short photonic crystal waveguide between the two that need to be coupled, can lead to a ...
  • Dossou, Kokou; Botten, Lindsay; Wilcox, Stuart; Mcphedran, Ross; De Sterke, C; Nicorovici, Nicolae; Asatryan, Ara (Elsevier Science Bv, 2007)
    An exact theory for modelling modes of generalised defects in 2D photonic crystals (PCs) with a genuinely infinite cladding is presented. The approach builds on our fictitious source superposition method for simple defects ...
  • Dossou, Kokou; Byrne, Michael; Botten, Lindsay (Elsevier, 2006)
    We consider the calculation of the band structure and Bloch mode basis of two-dimensional photonic crystals, modelled as stacks of one-dimensional diffraction gratings. The scattering properties of each grating are calculated ...
  • Mahmoodian, Sahand; Sipe, John; Poulton, Christopher; Dossou, Kokou; Botten, Lindsay; Mcphedran, Ross; De Sterke, C (Optical Society of America, 2012)
    We present a first-principles method to compute radiation properties of ultra-high quality factor photonic crystal cavities. Our Frequency-domain Approach for Radiation (FAR) can compute the far-field radiation pattern and ...
  • Asatryan, Ara; Botten, Lindsay; Nicorovici, Nicolae; Mcphedran, Ross; De Sterke, C (Taylor & Francis Ltd, 2006)
    The frequency (Lamb) shift and local density of states (LDOS) in two-dimensional photonic crystals composed of a cluster of infinitely long circular cylinders is calculated classically using the radiation reaction mechanism. ...
  • Dossou, Kokou; Mcphedran, Ross; Botten, Lindsay; Asatryan, Ara; De Sterke, C (Optical Soc Amer, 2007)
    We consider defect modes created in complete gaps of 2D photonic crystals by perturbing the dielectric constant in some region. We study their evolution from a band edge with increasing perturbation using an asymptotic ...
  • Jia, Baohua; Norton, Andrew; Li, Jiafang; Rahmani, Adel; Asatryan, Ara; Botten, Lindsay; Gu, Min (Optical Society of America, 2008)
    A near-field microscope coupled with a near-infrared (NIR) supercontinuum source is developed and applied to characterize optical modes in a three-dimensional (3D) woodpile photonic crystal (PC) possessing a NIR partial ...
  • Wilcox, Stuart; Botten, Lindsay; De Sterke, C; Kuhlmey, Boris; Mcphedran, Ross; Fussell, David; Tomljenovic-Hanic, Snjezana (Optical Soc Amer, 2005)
    Using a novel computational method, the fundamental mode in index-guided microstructured optical fibers with genuinely infinite cladding is studied. It is shown that this mode has no cut-off, although its area grows rapidly ...
  • Campbell, Samuel; Botten, Lindsay; Mcphedran, Ross; De Sterke, C (Optical Soc Amer, 2008)
    We consider lamellar gratings made of dielectric or lossy materials used in classical diffraction mounts. We show how the modal diffraction formulation may be generalized to deal with slanted lamellar gratings and illustrate ...