Browsing by Author "Seassal, Christian"

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Browsing by Author "Seassal, Christian"

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  • Le Gac, Gaelle; Rahmani, Adel; Seassal, Christian; Picard, Emmanuel; Hadji, Emmanuel; Callard, Segolene (IEEE, 2008)
    Near-field probe was used to tune the resonance wavelength of a linear cavity. Theoritical and experimental study are presented to show the effect of the probe material on the cavity resonance
  • Bordas, Frederic; Steel, Michael; Seassal, Christian; Rahmani, Adel (Optical Society of America, 2007)
    We study the confinement of low group velocity band-edge modes in a photonic crystal slab. We use a rigorous, three dimensional, finite-difference time-domain method to compute the electromagnetic properties of the modes ...
  • Nedel, P; Letartre, Xavier; Seassal, Christian; Auffeves, A; Ferrier, L; Drouard, E; Rahmani, Adel; Viktorovitch, Pierre (Optical Soc Amer, 2011)
    We propose to use a localized ?-point slow Bloch mode in a 2D-Photonic Crystal (PC) membrane to realize an efficient surface emitting source. This device can be used as a quantum photonic device, e.g. a single photon source. ...
  • Grosjean, T; El Eter, A; Mivelle, M; Vo, Thanh-Phong; Belkhir, A; Ecoffey, C; Le Gac, Gaelle; Nedeljkovic, Dusan; Rahmani, Adel; Seassal, Christian; Callard, Segolene; Baida, F (American Institute of Physics, 2012)
    We demonstrate a method to reduce the mode volume of optical micro/nanocavities by positioning an opaque microtip in close proximity of the structures. This concept is used to blueshift the resonance of an active photonic ...
  • Louvion, Nicolas; Gerard, Davy; Mouette, J; De Fornel, Frederique; Seassal, Christian; Letarte, Xavier; Rahmani, Adel; Callard, Segolene (American Physical Society, 2005)
    We report the direct, room-temperature, near-field mapping and spectroscopy of the optical modes of a photonic-crystal microcavity containing quantum wells. We use a near-field optical probe to reveal the imprint of the ...
  • Vo, Thanh-Phong; Rahmani, Adel; Belarouci, Ali; Seassal, Christian; Nedeljkovic, Dusan; Callard, Segolene (Optical Society of America, 2010)
    We report on the near- and far-field investigation of the slow Bloch modes associated with the G point of the Brillouin zone, for a honeycomb lattice photonic crystal, using near-field scanning optical microscopy (NSOM) ...
  • Louvion, Nicolas; Rahmani, Adel; Seassal, Christian; Callard, Segolene; Gerard, Davy; De Fornel, Frederique (Optical Society of America, 2006)
    We present a direct, room-temperature near-field optical study of light confinement by a subwavelength defect microcavity in a photonic crystal slab containing quantum-well sources. The observations are compared with ...
  • Vo, Thanh-Phong; Mivelle, M; Callard, Segolene; Rahmani, Adel; Baida, F; Charraut, D; Belarouci, Ali; Nedeljkovic, Dusan; Seassal, Christian; Burr, Gayle; Grosjean, T (Optical Soc Amer, 2012)
    We study the near-field probing of the slow Bloch laser mode of a photonic crystal by a bowtie nano-aperture (BNA) positioned at the end of a metal-coated fiber probe. We show that the BNA acts as a polarizing nanoprobe ...
  • Bordas, Frederic; Seassal, Christian; Dupuy, Emmanuel; Regreny, Phillipe; Gendry, Michel; Viktorovitch, Pierre; Steel, Michael; Rahmani, Adel (Optical Society of America, 2009)
    We have designed, fabricated, and characterized an InP photonic crystal slab structure that supports a cavity-confined slow-light mode, i.e. a bandgap-confined valence band-edge mode. Three dimensional finite difference ...
  • Bordas, Frederic; Seassal, Christian; Steel, Michael; Rahmani, Adel (IEEE, 2007)
    We present a general scheme to trap slow-light in a photonic crystal slab and achieve high Q/V ratio with a fabrication tolerant design, well suited for low-threshold microlasers and cavity quantum electrodynamics.
  • Le Gac, Gaelle; Rahmani, Adel; Seassal, Christian; Picard, Emmanuel; Hadji, Emmanuel; Callard, Segolene (Optical Soc Amer, 2009)
    The influence of a near-field tip on the spectral characteristics of a resonant mode of an active photonic crystal micro-cavity was investigated. The wavelength shift of the mode was theoretically and experimentally ...