title: Visualizing the photonic band gap in hollow core photonic crystal fibers.
abstract: The light radiated from the guided mode of a hollow core photonic crystal fiber into free space is measured as a function of angle and wavelength. This enables the direct experimental visualization of the photonic band gap and the identification of localized modes of the core region.
authors.forename: Francois
authors.initials: F
authors.lastname: Couny
authors.forename: H
authors.initials: H
authors.lastname: Sabert
authors.forename: P
authors.initials: P
authors.lastname: Roberts
authors.forename: D P
authors.initials: DP
authors.lastname: Williams
authors.forename: A
authors.initials: A
authors.lastname: Tomlinson
authors.forename: B
authors.initials: B
authors.lastname: Mangan
authors.forename: L
authors.initials: L
authors.lastname: Farr
authors.forename: J
authors.initials: J
authors.lastname: Knight
authors.forename: T
authors.initials: T
authors.lastname: Birks
authors.forename: P St
authors.initials: PS
authors.lastname: Russell