Plasmonic super-oscillations and sub-diffraction focusing

• Main Authors: Yuan, Guanghui, Rogers, Edward T F, Roy, Tapashree, Du, Luping, Shen, Zexiang, Zheludev, Nikolay I
• Other Authors: School of Electrical and Electronic Engineering
• Format: Conference or Workshop Item
• Language: English
• Published: 2018
• Subjects: Superresolution; Surface Plasmons; DRNTU::Science::Physics
• Online Access: https://hdl.handle.net/10356/87596; http://hdl.handle.net/10220/46798
• Institution: Nanyang Technological University

We demonstrate experimental focusing of surface plasmon polaritons beyond the plasmon diffraction limit using a super-oscillatory plasmonic antenna at the wavelength of 785nm, achieving a hot-spot as small as 300nm.