naa a22 4500 510817637 CHVBK 20180411083516.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11468-013-9478-1 doi (NATIONALLICENCE)springer-10.1007/s11468-013-9478-1 Investigation of Physical Limits of Plasmonic Focusing Lens in Different Regions [Elektronische Daten] [Zhijian Zhang, Miao Yu] We present theoretical studies of three regions for plasmonic focusing, which are surface plasmon-dominating, Fresnel, and Fraunhoffer regions. The boundaries of the three regions are defined and the physical behaviors of plasmonic lenses in terms of focal length and focus size in these regions are investigated. A plasmonic lens that renders a subdiffraction-limit focus in the Fresnel region is presented and the lens performance with respect to the design parameters is studied by using finite-difference time-domain simulations. This work can serve as a basis for understanding plasmonic-focusing phenomenon and designing plasmonic lenses for various applications. Springer Science+Business Media New York, 2013 Surface plasmons nationallicence Subwavelength nationallicence Plasmonic lenses nationallicence Subdiffraction-limit focus nationallicence Zhang Zhijian Department of Mechanical Engineering, University of Maryland, 20742, College Park, MD, USA aut Yu Miao Department of Mechanical Engineering, University of Maryland, 20742, College Park, MD, USA aut Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 817-827 1557-1955 8:2<817 2013 8 11468 https://doi.org/10.1007/s11468-013-9478-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-013-9478-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhang Zhijian Department of Mechanical Engineering, University of Maryland, 20742, College Park, MD, USA aut NATIONALLICENCE 700 1- Yu Miao Department of Mechanical Engineering, University of Maryland, 20742, College Park, MD, USA aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 817-827 1557-1955 8:2<817 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer