title: Near-field observation of subwavelength confinement of photoluminescence by a photonic crystal microcavity.
abstract: 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 three-dimensional finite-difference time-domain calculations, and excellent agreement is found. Moreover, we use a subwavelength cavity to study the influence of a near-field probe on the imaging of localized optical modes.
authors.affiliation: Laboratoire d'Elecronique, Optoélectronique et Microsystèmes, Ecole Centrale de Lyon, Ecully Cedex, France.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Louvion
authors.forename: Adel
authors.initials: A
authors.lastname: Rahmani
authors.forename: Christian
authors.initials: C
authors.lastname: Seassal
authors.forename: Ségolène
authors.initials: S
authors.lastname: Callard
authors.forename: Davy
authors.initials: D
authors.lastname: Gérard
authors.forename: Frédérique
authors.initials: F
authors.lastname: de Fornel