We design and demonstrate experimentally a plasmonic directional beaming device with an expected beam angle, which consists of a slit-grooves structure in Au/Cr metal layers. The directional beaming phenomenon is achieved by modulating the phases of the radiation light diffracted by grooves from surface plasmon polariton and controlling the wavefront of the transmitted light to propagate toward the desired direction. The transmitted field through the demonstration beaming device is simulated with finite-difference time-domain method and visualized using scanning near-field optical microscope. The simulation and experimental results both show a significant directional beaming effect and are in good agreement with theoretical expectation. Such a plasmonic beaming device has potential applications in optical interconnection, display, and illumination. (c) 2012 Optical Society of America
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Univ Toronto, Edward S Rogers Sr Dept Elect & Comp Engn, Toronto, ON M5S 3G4, CanadaUniv Toronto, Edward S Rogers Sr Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada
Xu, M. Y-C
Aitchison, J. S.
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Univ Toronto, Edward S Rogers Sr Dept Elect & Comp Engn, Toronto, ON M5S 3G4, CanadaUniv Toronto, Edward S Rogers Sr Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada
机构:
Natl Res Tomsk Polytech Univ, Tomsk 634050, Russia
Natl Res Tomsk State Univ, Tomsk 634050, RussiaNatl Res Tomsk Polytech Univ, Tomsk 634050, Russia
Minin, Igor, V
Minin, Oleg, V
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Natl Res Tomsk Polytech Univ, Tomsk 634050, Russia
Natl Res Tomsk State Univ, Tomsk 634050, RussiaNatl Res Tomsk Polytech Univ, Tomsk 634050, Russia
Minin, Oleg, V
Glinskiy, Igor A.
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Russian Acad Sci, Prokhorov Gen Phys Inst, Moscow 119991, Russia
RAS, Inst Ultra High Frequency Semicond Elect, Moscow 117105, RussiaNatl Res Tomsk Polytech Univ, Tomsk 634050, Russia
Glinskiy, Igor A.
Khabibullin, Rustam A.
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RAS, Inst Ultra High Frequency Semicond Elect, Moscow 117105, RussiaNatl Res Tomsk Polytech Univ, Tomsk 634050, Russia
Khabibullin, Rustam A.
Malureanu, Radu
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Tech Univ Denrnark, Dept Photon Engn, Bldg 345V, DK-2800 Lyngby, DenmarkNatl Res Tomsk Polytech Univ, Tomsk 634050, Russia
Malureanu, Radu
Lavrinenko, Andrei, V
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Tech Univ Denrnark, Dept Photon Engn, Bldg 345V, DK-2800 Lyngby, DenmarkNatl Res Tomsk Polytech Univ, Tomsk 634050, Russia
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Seoul Natl Univ, Interuniv Semicond Res Ctr, Natl Creat Res Ctr Act Plasmon Applicat Syst, Seoul 151774, South Korea
Seoul Natl Univ, Sch Elect Engn, Seoul 151774, South KoreaSeoul Natl Univ, Interuniv Semicond Res Ctr, Natl Creat Res Ctr Act Plasmon Applicat Syst, Seoul 151774, South Korea
Song, Eui-Young
Kim, Hwi
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Korea Univ, Coll Sci & Technol, Elect & Informat Engn Dept, Sejong 339700, South KoreaSeoul Natl Univ, Interuniv Semicond Res Ctr, Natl Creat Res Ctr Act Plasmon Applicat Syst, Seoul 151774, South Korea
Kim, Hwi
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Choi, Woo Young
Lee, Byoungho
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Seoul Natl Univ, Interuniv Semicond Res Ctr, Natl Creat Res Ctr Act Plasmon Applicat Syst, Seoul 151774, South Korea
Seoul Natl Univ, Sch Elect Engn, Seoul 151774, South KoreaSeoul Natl Univ, Interuniv Semicond Res Ctr, Natl Creat Res Ctr Act Plasmon Applicat Syst, Seoul 151774, South Korea