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Analytical Investigation of Transmission Properties of Metallic Gratings |
CHEN Jun-Xue, WANG Pei, WANG Xiao-Lei, LU Yong-Hua, ZHENG Rong-Sheng,
MING Hai |
| Department of Physics, Anhui Key Laboratory of Optoelectronic Science and Technology, University of Science and Technology of China, Hefei 230026 |
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| Cite this article: |
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CHEN Jun-Xue, WANG Pei, WANG Xiao-Lei et al 2008 Chin. Phys. Lett. 25 4385-4387 |
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Abstract We re-examine the classical one-dimensional transmission grating to explain the enhanced transmission in the surface impedance approximation. The nearly zero transmission and extraordinary transmission phenomena related to the surface plasmon are presented by analysing the scattering amplitude of waveguide mode at the output surface of grating. It is revealed that the transmission peaks are related to the Fabry-Perot factor and the interaction of surface plasmon and other diffractive orders.
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| Keywords:
73.20.Mf
42.79.Dj
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Received: 12 September 2008
Published: 27 November 2008
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| PACS: |
73.20.Mf
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(Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))
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42.79.Dj
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(Gratings)
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