Metallic diffraction grating enhanced coupling in whispering gallery resonator

• Main Authors: Zhou, Yanyan, Yu, Xia, Zhang, Haixi, Luan, Feng
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
• Online Access: https://hdl.handle.net/10356/96549; http://hdl.handle.net/10220/9901
• Institution: Nanyang Technological University

For the first time, metallic diffraction grating is investigated to enable efficient coupling in the whispering gallery resonator (WGR). Six-fold field enhancement in the resonator is achieved with respect to their dielectric counter-parts. This higher coupling efficiency is attributed to the su...