title: Evidence for confined tamm plasmon modes under metallic microdisks and application to the control of spontaneous optical emission.
abstract: We demonstrate strong confinement of the optical field by depositing a micron sized metallic disk on a planar distributed Bragg reflector. Confined Tamm plasmon modes are evidenced both experimentally and theoretically, with a lateral confinement limited to the disk area and strong coupling to TE polarized fields. Single quantum dots controllably coupled to these modes are shown to experience acceleration of their spontaneous emission when spectrally resonant with the mode. For quantum dots spectrally detuned from the confined Tamm plasmon mode, an inhibition of spontaneous emission by a factor 40±4 is observed, a record value in the optical domain.
authors.affiliation: Laboratoire de Photonique et de Nanostructures, LPN/CNRS, Route de Nozay, 91460 Marcoussis, France.
authors.forename: O
authors.initials: O
authors.lastname: Gazzano
authors.forename: S
authors.initials: S
authors.lastname: Michaelis de Vasconcellos
authors.forename: K
authors.initials: K
authors.lastname: Gauthron
authors.forename: C
authors.initials: C
authors.lastname: Symonds
authors.forename: J
authors.initials: J
authors.lastname: Bloch
authors.forename: P
authors.initials: P
authors.lastname: Voisin
authors.forename: J
authors.initials: J
authors.lastname: Bellessa
authors.forename: A
authors.initials: A
authors.lastname: Lemaître
authors.forename: P
authors.initials: P
authors.lastname: Senellart