<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Yao, Wenjie</style></author><author><style face="normal" font="default" size="100%">Liu, Shang</style></author><author><style face="normal" font="default" size="100%">Huimin Liao</style></author><author><style face="normal" font="default" size="100%">Li, Zhi</style></author><author><style face="normal" font="default" size="100%">Sun, Chengwei</style></author><author><style face="normal" font="default" size="100%">Chen, Jianjun</style></author><author><style face="normal" font="default" size="100%">Qihuang Gong</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Efficient Directional Excitation of Surface Plasmons by a Single-Element Nanoantenna</style></title><secondary-title><style face="normal" font="default" size="100%">NANO LETTERS</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">directional scattering</style></keyword><keyword><style  face="normal" font="default" size="100%">mode conversion</style></keyword><keyword><style  face="normal" font="default" size="100%">nanoantenna</style></keyword><keyword><style  face="normal" font="default" size="100%">single-element</style></keyword><keyword><style  face="normal" font="default" size="100%">surface plasmon polaritons</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2015</style></year><pub-dates><date><style  face="normal" font="default" size="100%">MAY</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">5</style></number><publisher><style face="normal" font="default" size="100%">AMER CHEMICAL SOC</style></publisher><pub-location><style face="normal" font="default" size="100%">1155 16TH ST, NW, WASHINGTON, DC 20036 USA</style></pub-location><volume><style face="normal" font="default" size="100%">15</style></volume><pages><style face="normal" font="default" size="100%">3115-3121</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Directional light scattering is important in basic research and real applications. This area has been successfully downscaled to wavelength and subwavelength scales With the development of optical antennas, especially single-element nano-antennas. Here, by adding an auxiliary resonant structure to a single-element plasmonic nanoantenna, we show that the highly efficient lowest-order antenna mode can be effectively transferred into inactive higher-order modes. On the basis of this mode conversion, scattered optical fields can be well manipulated by utilizing the interference between different antenna modes. Both broadband directional excitation of surface plasmon polaritons (SPPs) and inversion of SPP launching direction at different wavelengths are experimentally demonstrated as typical examples. The proposed strategy based on mode conversion and mode interference provides new opportunities for the design of nanoscale optical devices, especially directional nanoantennas.&lt;/p&gt;</style></abstract><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom7><style face="normal" font="default" size="100%">000354906000051</style></custom7></record></records></xml>