title: Manipulation of spontaneous emission in a tapered photonic crystal fibre.
abstract: We characterize the spontaneous emission of dye that is introduced into the central core of a tapered photonic crystal fiber. Since the photonic crystal period in the fibre cladding varies along the taper, the transmission and spontaneous emission spectra over a wide range of relative frequencies can be observed. The spontaneous emission spectra of the fibre transverse to the fiber axis show suppression due to partial band-gaps of the structure, and also enhancement of spontaneous emission near the band edges. We associate these with van Hove features, as well as finite cluster size effects.
authors.forename: S J
authors.initials: SJ
authors.lastname: Myers
authors.forename: D P
authors.initials: DP
authors.lastname: Fussell
authors.forename: J M
authors.initials: JM
authors.lastname: Dawes
authors.forename: E
authors.initials: E
authors.lastname: Mägi
authors.forename: R C
authors.initials: RC
authors.lastname: McPhedran
authors.forename: B J
authors.initials: BJ
authors.lastname: Eggleton
authors.forename: C Martijn
authors.initials: CM
authors.lastname: de Sterke