title: Band gap formation and multiple scattering in photonic quasicrystals with a Penrose-type lattice.
abstract: This Letter presents a study of the local density of states (LDOS) in photonic quasicrystals. We show that the LDOS of a Penrose-type quasicrystal exhibits small additional band gaps. Among the band gaps, some exhibit a behavior similar to that typical of photonic crystals, while others do not. The development of certain band gaps requires large-size quasicrystals. It is explained by the long-range interactions involved in their formation. Moreover, the frequencies where the band gaps occur are not necessarily explained using single scattering and should therefore involve multiple scattering.
authors.affiliation: Institut Fresnel, CNRS 6133, Université Paul Cézanne Aix-Marseille III, Faculté des Sciences et Techniques, case 161, 13397 Marseille cedex 20, France.
authors.forename: A
authors.initials: A
authors.lastname: Della Villa
authors.forename: S
authors.initials: S
authors.lastname: Enoch
authors.forename: G
authors.initials: G
authors.lastname: Tayeb
authors.forename: V
authors.initials: V
authors.lastname: Pierro
authors.forename: V
authors.initials: V
authors.lastname: Galdi
authors.forename: F
authors.initials: F
authors.lastname: Capolino