Browsing 02 Physical Sciences by Author "Madden Steve"

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Browsing 02 Physical Sciences by Author "Madden Steve"

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  • Characterizing photonic crystal waveguides with an expanded k-space evanescent coupling technique 
    Lee Michael; Grillet Christian; Poulton Christopher; Monat C; Smith Cameron; Magi Eric; Freeman Darren; Madden Steve; Luther-Davies Barry; Eggleton Benjamin (Optical Soc Amer, 2008)
    We demonstrate a direct, single measurement technique for characterizing the dispersion of a photonic crystal waveguide (PCWG) using a tapered fiber evanescent coupling method. A highly curved fiber taper is used to probe ...
  • 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 ...
  • On-Chip Stimulated Brillouin Scattering 
    Pant R; Poulton Christopher; Choi Dy; Mcfarlane H; Hile S; Li E; Thevenaz L; Luther-Davies Barry; Madden Steve; Eggleton Benjamin (Optical Soc Amer, 2011)
    We demonstrate on-chip stimulated Brillouin scattering (SBS) in an As2S3 chalcogenide rib waveguide. SBS was characterized in a 7cm long waveguide with a cross-section 4£gm x 850nm using the backscattered signal and ...