title: On-chip waveguide resonator with metallic mirrors.
abstract: We introduce an optical microresonator consisting of a planar waveguide terminated by metallic mirrors. The resonator was fabricated on a silicon-on-insulator platform, and its optical performance was theoretically and experimentally investigated. The demonstrated device had dimensions of 200 mumx40 mum and exhibited a quality factor of about 1000 and a free-spectral range of about 8 nm. Application to high-throughput, label-free biochemical sensing is considered, and optimization with respect to the surface sensitivity is carried out. The optimized sensitivity makes it possible to detect subnanometer layers of molecules adsorbing to the surface of the resonator.
authors.affiliation: Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla,California 92093, USA. szamek@ucsd.edu
authors.forename: Steve
authors.initials: S
authors.lastname: Zamek
authors.forename: Amit
authors.initials: A
authors.lastname: Mizrahi
authors.forename: Liang
authors.initials: L
authors.lastname: Feng
authors.forename: Aleksandar
authors.initials: A
authors.lastname: Simic
authors.forename: Yeshaiahu
authors.initials: Y
authors.lastname: Fainman
mesh_terms: D015374:Biosensing Techniques; D002623:Chemistry Techniques, Analytical / Q000295:instrumentation*; D057166:High-Throughput Screening Assays; D008855:Microscopy, Electron, Scanning; D055096:Optical Devices; D012825:Silicon / Q000737:chemistry*
chemical_list: D012825:Silicon