naa a22 4500 510816215 CHVBK 20180411083508.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1007/s11468-013-9557-3 doi (NATIONALLICENCE)springer-10.1007/s11468-013-9557-3 All-Optical Strong Coupling Switches Based on a Coupled Meta-atom and MIM Nanocavity Configuration [Elektronische Daten] [San Chen, Jianqiang Liu, Hongyan Lu, Yongyuan Zhu] Based on a coupled meta-atom and metal-nonlinear dielectric-metal nanocavity, nonlinear all-optical strong coupling switches are proposed and numerically investigated. In the absence of the external pumping light, the resonances of the meta-atom are continuously tuned across the one of the nanocavity by changing the size of the meta-atom. The meta-atomic electric dipole and quadrupole interaction with the plasmonic nanocavity is obtained. The characteristic anticrossing behaviors manifest the occurrence of the strong coupling. With the resonance of the meta-atom being tuned to the one of the nanocavity, we dynamically tune the coupled strength of the system by changing intensity (power) of the pumping light and realize the transition from the strong coupling regime to the weak one. This means that this system can be used as an on/off switch in which the strong coupling can be on/off with an external control light, and the on/off states correspond to strong/weak coupling regime, respectively. Such a strong coupling all-optical switching is of considerable interest for applications in nanoscale plasmonic circuits. Springer Science+Business Media New York, 2013 Surface plasmons nationallicence Bragg reflectors nationallicence Optical switches nationallicence Chen San College of Physics and Electronic Information, Huaibei Normal University, 235000, Huaibei, People's Republic of China aut Liu Jianqiang Department of Physics, State Laboratory of Solid State Microstructures, Nanjing University, 210093, Nanjing, People's Republic of China aut Lu Hongyan College of Physics and Electronic Information, Huaibei Normal University, 235000, Huaibei, People's Republic of China aut Zhu Yongyuan Department of Physics, State Laboratory of Solid State Microstructures, Nanjing University, 210093, Nanjing, People's Republic of China aut Plasmonics Springer US; http://www.springer-ny.com 8/3(2013-09-01), 1439-1444 1557-1955 8:3<1439 2013 8 11468 https://doi.org/10.1007/s11468-013-9557-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-013-9557-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chen San College of Physics and Electronic Information, Huaibei Normal University, 235000, Huaibei, People's Republic of China aut NATIONALLICENCE 700 1- Liu Jianqiang Department of Physics, State Laboratory of Solid State Microstructures, Nanjing University, 210093, Nanjing, People's Republic of China aut NATIONALLICENCE 700 1- Lu Hongyan College of Physics and Electronic Information, Huaibei Normal University, 235000, Huaibei, People's Republic of China aut NATIONALLICENCE 700 1- Zhu Yongyuan Department of Physics, State Laboratory of Solid State Microstructures, Nanjing University, 210093, Nanjing, People's Republic of China aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/3(2013-09-01), 1439-1444 1557-1955 8:3<1439 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer