title: Confocal reflectance microscopy for determination of microbubble resonator thickness.
abstract: Optical Micro Bubble Resonators (OMBR) are emerging as new type of sensors characterized by high Q-factor and embedded micro-fluidic. Sensitivity is related to cavity field penetration and, therefore, to the resonator thickness. At the state of the art, methods for OMBR's wall thickness evaluation rely only on a theoretical approach. The purpose of this study is to create a non-destructive method for measuring the shell thickness of a microbubble using reflectance confocal microscopy. The method was validated through measurements on etched capillaries with different thickness and finally it was applied on microbubble resonators.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Cosci
authors.forename: Franco
authors.initials: F
authors.lastname: Quercioli
authors.forename: Daniele
authors.initials: D
authors.lastname: Farnesi
authors.forename: Simone
authors.initials: S
authors.lastname: Berneschi
authors.forename: Ambra
authors.initials: A
authors.lastname: Giannetti
authors.forename: Franco
authors.initials: F
authors.lastname: Cosi
authors.forename: Andrea
authors.initials: A
authors.lastname: Barucci
authors.forename: Gualtiero Nunzi
authors.initials: GN
authors.lastname: Conti
authors.forename: Giancarlo
authors.initials: G
authors.lastname: Righini
authors.forename: Stefano
authors.initials: S
authors.lastname: Pelli