Title :
Plasmonic antenna-array for 2D sub-diffraction focusing beyond the optical near-field
Author :
Wang, Yan ; Helmy, Amr S. ; Eleftheriades, George V.
Author_Institution :
Edward S. Rogers Sr. Dept. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON, Canada
Abstract :
We propose a practical optical probe configuration capable of 2D sub-diffraction imaging at a large working distance at visible frequencies. The structure consists of a planar monopole antenna-array that facilitates super-focusing due to “radiationless interference”.
Keywords :
monopole antenna arrays; nanophotonics; optical design techniques; optical focusing; planar antenna arrays; plasmonics; 2D subdiffraction focusing; 2D subdiffraction imaging; optical near field; optical probe configuration; optical superfocusing; planar monopole antenna array; plasmonic antenna array; radiationless interference; visible frequencies; Apertures; Focusing; Interference; Optical imaging; Plasmons; Probes;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
