Browsing Conference Papers by Author "Asatryan Ara"

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Browsing Conference Papers by Author "Asatryan Ara"

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  • Conductance of photons and Anderson localization of light 
    Asatryan Ara; Botten Lindsay; Mcphedran Ross; De Sterke C; Langtry Timothy; Nicorovici Nicolae (Optical Society of America, 2004)
    Conductance properties of photons in disordered two-dimensional photonic crystals is calculated using exact multipole expansions technique. The Landauer¿s two-terminal formula is used to calculate average of the conductance, ...
  • Efficient couplers for photonic crystal waveguides 
    Mcphedran Ross; Dossou Kokou; Botten Lindsay; Asatryan Ara; De Sterke C; Chen Shigang; Brnovic Jovana (Optical Society of America, 2005)
    We consider the design of efficient couplers between a photonic crystal waveguide and a uniform background material. We show that horn-shaped tapers can provide efficient bi-directional coupling between the waveguide and ...
  • Fano resonances of photonic crystal slabs 
    Byrne Michael; Botten Lindsay; Asatryan Ara; Nicorovici Nicolae; Norton Andrew; Mcphedran Ross; De Sterke C (The Institute of Electrical and Electronic Engineers Inc (IEEE), 2006)
    A Bloch mode theory for diffraction of plane waves by planar PC slabs is developed. The theory provides physical insight into the origin of Fano resonances, allowing a simple pole model to be deduced rigorously.
  • General Characteristics of Localisation in Stratified Media with Randon Loss and Gain 
    Botten Lindsay; De Sterke C; Mcphedran Ross; Nicorovici Nicolae; Asatryan Ara; Robinson Peter (Kluwer Academic Publishers, 2001)
    Localization in multi-layer stratified media with gain and loss is considered. The localization length is studied as a function of wavelength over a wide spectral range, and it is demonstrated that, in many cases, the ...
  • Modelling of complex waveguides structures embedded in photonic crystals 
    White Tom; De Sterke C; Asatryan Ara; Mcphedran Ross; Langtry Timothy; Botten Lindsay (COIN/ACOFT 2003, 2003)
    A rigorous approach is developed for guiding and coupling in complex microstructured waveguides embedded in photonic crystals. The method, based on Bloch modes and generalized Fresnel coefficients, is applied to ...
  • Modes of composite defects in 2D photonic crystals 
    Poulton Christopher; Mcphedran Ross; Dossou Kokou; Mahmoodian Sahand; Botten Lindsay; De Sterke C; Asatryan Ara (IEEE, 2008)
    We demonstrate the existence of a class of defects in 2D photonic crystals, for which the eigenstates depend only on the defect geometry, and not on details Re photonic crystal parameters or defect size.
  • Nonlinear photonic crystals in chalcogenide for all-optical processing 
    Grillet Christian; Smith Cameron; Lee Michael; Magi Eric; Moss D; Eggleton Benjamin; Freeman Darren; Madden Steve; Luther-Davies Barry; Byrne Michael; Asatryan Ara; Botten Lindsay (The Institute of Electrical and Electronic Engineers Inc (IEEE), 2006)
    We present the first experimental and theoretical results using nonlinear 2D photonic crystals in Chalcogenide. This scheme provides a promising platform to realize low power integrated all-optical switching and logic ...
  • Photonic Bands and Scattering for Stacks of Lossy, Dispersive Cylinders 
    Nicorovici Nicolae; Mcphedran Ross; Botten Lindsay; Asatryan Ara; Robinson Peter; De Sterke C (Kluwer Academic Publishers, 2001)
    We have developed an original method to investigate stacks of gratings, consisting of dielectric or metallic, circular cylinders. The accuracy of the method is not affected by the high contrast between the cylinders and ...
  • Transverse coupling of light into the core of a photonic crystal fibre 
    Kan Dougal; Marshall Graham; Botten Lindsay; Asatryan Ara; Withford Michael (IEEE, 2007)