Extraordinary light transmission through a metal film perforated by a subwavelength hole array |
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| Authors: | A A Zyablovskii A A Pavlov V V Klimov A A Pukhov A V Dorofeenko A P Vinogradov A A Lisyanskii |
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| Institution: | 1.Dukhov All-Russian Research Institute of Automatics,Moscow,Russia;2.Moscow Institute of Physics and Technology (State University),Dolgoprudnyi, Moscow oblast,Russia;3.Institute of Theoretical and Applied Electrodynamics,Russian Academy of Sciences,Moscow,Russia;4.Lebedev Physical Institute,Russian Academy of Sciences,Moscow,Russia;5.National Research Nuclear University “MEPhI”,Moscow,Russia;6.Department of Physics,Queens College of the City University of New York,New York,USA;7.DuThe Graduate Center of the City University of New York,New York,USA |
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| Abstract: | It is shown that, depending on the incident wave frequency and the system geometry, the extraordinary transmission of light through a metal film perforated by an array of subwavelength holes can be described by one of the three mechanisms: the “transparency window” in the metal, excitation of the Fabry–Perot resonance of a collective mode produced by the hybridization of evanescence modes of the holes and surface plasmons, and excitation of a plasmon on the rear boundary of the film. The excitation of a plasmon resonance on the front boundary of the metal film does not make any substantial contribution to the transmission coefficient, although introduces a contribution to the reflection coefficient. |
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