title: Optical necklace states in Anderson localized 1D systems.
abstract: We report on the observation of nonlocalized modes or necklace states of light waves in disordered systems in the Anderson localized regime. The samples consist of positional-disordered binary multilayer systems. Anderson localized modes manifest themselves as narrow high-transmission peaks in the transmission spectrum, whereas the average of the logarithm of the transmission coefficient decreases linearly with thickness. Optical necklace states are observed as modes with a characteristic multiresonance time response and relatively fast decay time.
authors.affiliation: European Laboratory for Nonlinear Spectroscopy and INFM, 50019 Sesto Fiorentino, Florence, Italy.
authors.forename: Jacopo
authors.initials: J
authors.lastname: Bertolotti
authors.forename: Stefano
authors.initials: S
authors.lastname: Gottardo
authors.forename: Diederik S
authors.initials: DS
authors.lastname: Wiersma
authors.forename: Mher
authors.initials: M
authors.lastname: Ghulinyan
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Pavesi