title: High-Q double-disk microcavities for cavity optomechanics.
abstract: We design a double-disk microcavity consisting of a pair of silica microdisks separated by a nanoscale gap region on a silicon chip for cavity optomechanics. We show that this type of photonic structure can provide a per-photon gradient force with a magnitude much larger than for scattering-force-based structures. Moreover, this device provides for nearly independent optimization of optical and mechanical properties. We present the processing details of fabricated devices.
authors.affiliation: Department of Applied Physic, California Institute of Technology, Pasadena, California 91125, USA.
authors.forename: Xiaoshun
authors.initials: X
authors.lastname: Jiang
authors.forename: Qiang
authors.initials: Q
authors.lastname: Lin
authors.forename: Jessie
authors.initials: J
authors.lastname: Rosenberg
authors.forename: Kerry
authors.initials: K
authors.lastname: Vahala
authors.forename: Oskar
authors.initials: O
authors.lastname: Painter
mesh_terms: D015374:Biosensing Techniques; D004867:Equipment Design; D055096:Optical Devices; D055095:Optics and Photonics; D017785:Photons; D011312:Pressure; D012542:Scattering, Radiation; D012825:Silicon / Q000737:chemistry
chemical_list: D012825:Silicon