Enhanced infrared transmission through subwavelength coaxial metallic arrays |
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| Authors: | Fan Wenjun Zhang Shuang Minhas Babar Malloy Kevin J Brueck S R J |
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| Affiliation: | Center for High Technology Materials and Electrical and Computer Engineering Department, University of New Mexico, Albuquerque, New Mexico 87106, USA. |
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| Abstract: | We report the observation of enhanced near-infrared transmission through arrays of subwavelength coaxial metallic structures compared with that through comparable diameter hole arrays as a result of localized electromagnetic modes supported by the complex coaxial unit cell. Polarization and angle-dependent transmission measurements clearly demonstrate the coupling between this localized mode and delocalized surface plasmon modes. A generalized, multiple discrete states Fano line shape provides a good fit to the experimental results. |
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