naa a22 4500 51081672X CHVBK 20180411083511.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11468-012-9414-9 doi (NATIONALLICENCE)springer-10.1007/s11468-012-9414-9 Beam-Scanning Planar Lens Based on Metal-Dielectric-Metal Waveguide Arrays [Elektronische Daten] [Gaige Zheng, Linhua Xu, Yigen Wu, Wei Su, Yuzhu Liu] Under specific illumination conditions, periodic arrays of metal-dielectric-metal (MDM) waveguides act as uniform optical phased-array antenna where the phase of the radiating optical wave can be controlled by modifying the refractive index distribution of the dielectric material. Based on this property, we propose a planar gradient index MDM-based lens which can transform spherical waves of the transverse-magnetic surface plasmon polariton waves to plane waves with specific beam deflections by adjusting the refractive index configurations. Using numerical simulations based on two-dimensional finite-difference time-domain method, it is confirmed that beam focusing and splitting with multiple dflection angles can also be achieved. Springer Science+Business Media, LLC, 2012 Surface plasmon nationallicence Plasmonic nanolens nationallicence Metal-dielectric-metal waveguide nationallicence Beam deflection nationallicence Zheng Gaige School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, 210044, Nanjing, Jiangsu, China aut Xu Linhua School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, 210044, Nanjing, Jiangsu, China aut Wu Yigen School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, 210044, Nanjing, Jiangsu, China aut Su Wei School of Science, Nanjing University of Science & Technology, 210094, Nanjing, Jiangsu, China aut Liu Yuzhu Paul Scherrer Institute, CH5232, Villigen, Switzerland aut Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 481-486 1557-1955 8:2<481 2013 8 11468 https://doi.org/10.1007/s11468-012-9414-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-012-9414-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zheng Gaige School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, 210044, Nanjing, Jiangsu, China aut NATIONALLICENCE 700 1- Xu Linhua School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, 210044, Nanjing, Jiangsu, China aut NATIONALLICENCE 700 1- Wu Yigen School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, 210044, Nanjing, Jiangsu, China aut NATIONALLICENCE 700 1- Su Wei School of Science, Nanjing University of Science & Technology, 210094, Nanjing, Jiangsu, China aut NATIONALLICENCE 700 1- Liu Yuzhu Paul Scherrer Institute, CH5232, Villigen, Switzerland aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 481-486 1557-1955 8:2<481 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer