naa a22 4500 510817149 CHVBK 20180411083513.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11468-012-9454-1 doi (NATIONALLICENCE)springer-10.1007/s11468-012-9454-1 Interaction Between Two Perpendicular Fabry-Perot-Like Resonances of the Antenna-Dielectric-Slit Structure and Their Influences on the Transmission Enhancement [Elektronische Daten] [Qiao Wang, Xiaogang Wang, Shifa Wu] The interaction between the two perpendicular Fabry-Perot-like resonances of the antenna-dielectric-slit structure and their influences on the transmission enhancement are investigated with a finite-difference time-domain method. The transmission enhancement is found with the antenna width corresponding to a Fabry-Perot-like resonance condition in the antenna-dielectric-slit structure; otherwise, there is no such an enhancement even when the slit is positioned under the magnetic field maximum. On the other hand, the resonance characteristics of the vertical slit can also modify the field distribution in the horizontal cavity by changing the phase difference at the two antenna ends. It is shown that the enhanced transmission can be realized in a wide range of incident wavelengths from the visible to near-infrared regime for different slit geometries. The physical mechanism of extraordinary optical transmission is discussed with a theoretical dispersion relationship of surface plasmon polaritons based on a metal-insulator-metal cavity model. Springer Science+Business Media New York, 2012 Nano-antenna nationallicence Fabry-Perot-like resonance nationallicence Extraordinary optical transmission nationallicence Surface plasmon polaritons nationallicence Wang Qiao MOE Key Lab of Materials Modification by Beams, School of Physics and Optoelectronic Engineering, Dalian University of Technology, 116024, Dalian, China aut Wang Xiaogang State Key Lab of Nuclear Physics and Technology and School of Physics, Peking University, 100871, Beijing, China aut Wu Shifa MOE Key Lab of Materials Modification by Beams, School of Physics and Optoelectronic Engineering, Dalian University of Technology, 116024, Dalian, China aut Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 669-676 1557-1955 8:2<669 2013 8 11468 https://doi.org/10.1007/s11468-012-9454-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-012-9454-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Qiao MOE Key Lab of Materials Modification by Beams, School of Physics and Optoelectronic Engineering, Dalian University of Technology, 116024, Dalian, China aut NATIONALLICENCE 700 1- Wang Xiaogang State Key Lab of Nuclear Physics and Technology and School of Physics, Peking University, 100871, Beijing, China aut NATIONALLICENCE 700 1- Wu Shifa MOE Key Lab of Materials Modification by Beams, School of Physics and Optoelectronic Engineering, Dalian University of Technology, 116024, Dalian, China aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 669-676 1557-1955 8:2<669 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer