title: Evidence of light guiding in ion-implanted diamond.
abstract: We demonstrate the feasibility of fabricating light-waveguiding microstructures in bulk single-crystal diamond by means of direct ion implantation with a scanning microbeam, resulting in the modulation of the refractive index of the ion-beam damaged crystal. Direct evidence of waveguiding through such buried microchannels is obtained with a phase-shift micro-interferometric method allowing the study of the multimodal structure of the propagating electromagnetic field. The possibility of defining optical and photonic structures by direct ion writing opens a range of new possibilities in the design of quantum-optical devices in bulk single-crystal diamond.
authors.affiliation: Department of Energetics University of Firenze and INFN, Via S Marta 3, Italy. lagomarsino@fi.infn.it
authors.forename: S
authors.initials: S
authors.lastname: Lagomarsino
authors.forename: P
authors.initials: P
authors.lastname: Olivero
authors.forename: F
authors.initials: F
authors.lastname: Bosia
authors.forename: M
authors.initials: M
authors.lastname: Vannoni
authors.forename: S
authors.initials: S
authors.lastname: Calusi
authors.forename: L
authors.initials: L
authors.lastname: Giuntini
authors.forename: M
authors.initials: M
authors.lastname: Massi