title: Flexible coupling of high-Q goblet resonators for formation of tunable photonic molecules.
abstract: We report on a method for a highly flexible arrangement of polymeric high-Q whispering gallery mode resonators. Parallel on-chip fabricated goblet resonators are detached from the substrate by bonding a gold wire to the field-free center of their polymeric cavity. This enables the precise control of the resonator's spatial position. The modal spectrum of the detached resonator reveals preservation of its high optical quality. Manipulation of the resonators' position allows for designing coupled resonators geometries and tuning the coupling properties dynamically after batch fabrication. The properties of the modal spectrum evidence the successful optical coupling.
authors.affiliation: Institute of Applied Physics and DFG Center for Functional Nanostructures CFN, Karlsruhe Institute of Technology, 76128 Karlsruhe, Germany. beck@kit.edu
authors.forename: Torsten
authors.initials: T
authors.lastname: Beck
authors.forename: Steffen
authors.initials: S
authors.lastname: Schloer
authors.forename: Tobias
authors.initials: T
authors.lastname: Grossmann
authors.forename: Timo
authors.initials: T
authors.lastname: Mappes
authors.forename: Heinz
authors.initials: H
authors.lastname: Kalt
mesh_terms: D017076:Computer-Aided Design; D055119:Elastic Modulus; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006046:Gold / Q000737:chemistry*; D017785:Photons; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D014159:Transducers
chemical_list: D006046:Gold