title: Design of plasmonic cavities.
abstract: In this review paper, we introduce the unique optical properties of high-quality, fully three-dimensional, subwavelength-scale plasmonic cavities. Surface-plasmon-polaritons excited at dielectric-metal interfaces are strongly confined in such cavities. The field profiles of plasmonic modes, their temperature-dependent quality factors, and subwavelength mode volumes are calculated and analyzed systematically using three-dimensional finite-difference time-domain simulations. Reasonable design of high-quality plasmonic cavities opens an opportunity to demonstrate novel plasmonic lasers enabling the further miniaturization of coherent light sources for use in ultra-compact photonic integrated circuits.
authors.affiliation: Department of Physics, Chung-Ang University, Seoul, 156-756 Republic of Korea.
authors.forename: Soon-Hong
authors.initials: SH
authors.lastname: Kwon
authors.affiliation: Department of Physics, Korea University, Seoul, 136-701 Republic of Korea.
authors.forename: You-Shin
authors.initials: YS
authors.lastname: No
authors.affiliation: Department of Physics, Korea University, Seoul, 136-701 Republic of Korea.
authors.forename: Hong-Gyu
authors.initials: HG
authors.lastname: Park