title: Hybrid silica-polymer ultra-high-Q microresonators.
abstract: Ultra-high-quality (UHQ) factor optical cavities have numerous applications throughout engineering and science. Incorporating active elements into these UHQ cavities to create dynamic devices would extend their applicability; however, it is inherently difficult to develop an active UHQ device. Ultra-thin films formed from optically active polymers provide one route to overcome this limitation. In the present work, hybrid devices composed of UHQ planar optical cavities with ultra-thin films are fabricated on a silicon wafer. Using finite element method simulations, the optical field overlap between the cavity and the polymer film is modeled and experimentally verified using two polymers: poly(methyl methacrylate) and polystyrene. These hybrid devices have demonstrated material-limited Q factors above 10(7).
authors.affiliation: Mork Family Department of Chemical Engineering and Materials Science, University of Southern California,Los Angeles, California 90089, USA.
authors.forename: Hong Seok
authors.initials: HS
authors.lastname: Choi
authors.forename: Xiaomin
authors.initials: X
authors.lastname: Zhang
authors.forename: Andrea M
authors.initials: AM
authors.lastname: Armani