naa a22 4500 510817254 CHVBK 20180411083513.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11468-013-9492-3 doi (NATIONALLICENCE)springer-10.1007/s11468-013-9492-3 Chen Jiannong School of Physics and Opto-Electronic Engineering, Ludong University, 264025, Yantai, China aut Numerical Study of a Nonplanar Two-Stage Surface Plasmonic Lens Illuminated by a Radially Polarized Beam [Elektronische Daten] [Jiannong Chen] We design and fabricate a nonplanar two-stage surface plasmonic lens composed of concentric circular slits for exciting propagating surface plasmonic wave and a center-positioned cone-like nanoparticle for generating localized surface plasmonic waves. The numerical investigation based on the finite difference in time domain method is performed. It is found that, when a radially polarized beam illumination is applied, a highly confined electric field with full width half maximum of as small as 6nm and the transmission enhancement factor of six orders higher than the incident beam is achievable. The optimization design is conducted through comparison of different conic angles and different materials of the cone-like nanoparticles. Springer Science+Business Media New York, 2013 Surface plasmonic lens nationallicence Radially polarized beam nationallicence Enhancement nationallicence Focusing nationallicence Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 931-936 1557-1955 8:2<931 2013 8 11468 https://doi.org/10.1007/s11468-013-9492-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-013-9492-3 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Chen Jiannong School of Physics and Opto-Electronic Engineering, Ludong University, 264025, Yantai, China aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 931-936 1557-1955 8:2<931 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer