title: Topology-optimized multiple-disk resonators obtained using level set expression incorporating surface effects.
abstract: Topology-optimized designs of multiple-disk resonators are presented using level-set expression that incorporates surface effects. Effects from total internal reflection at the surfaces of the dielectric disks are precisely simulated by modeling clearly defined dielectric boundaries during topology optimization. The electric field intensity in optimal resonators increases to more than four and a half times the initial intensity in a resonant state, whereas in some cases the Q factor increases by three and a half times that for the initial state. Wavelength-scale link structures between neighboring disks improve the performance of the multiple-disk resonators.
authors.forename: Garuda
authors.initials: G
authors.lastname: Fujii
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Ueta
authors.forename: Mamoru
authors.initials: M
authors.lastname: Mizuno
authors.forename: Masayuki
authors.initials: M
authors.lastname: Nakamura