High-Q double-disk microcavities for cavity optomechanics

Xiaoshun Jiang, Qiang Lin, Jessie Rosenberg, Kerry Vahala, Oskar Painter
2009 Optics Express  
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.
doi:10.1364/oe.17.020911 pmid:19997328 fatcat:witnq2mbmfcz7iscsej45mtbrq