Enhanced coupling of plasmons in hole arrays with periodic dielectric antennas |
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| Authors: | Stolwijk D Driessen E F C Verschuuren M A 't Hooft G W van Exter M P de Dood M J A |
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| Institution: | Huygens Laboratory, Leiden University, PO Box 9504, 2300 RA Leiden, The Netherlands. |
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| Abstract: | We compare the angle-dependent transmission spectra of a metal hole array with dielectric pillars in each hole with that of a conventional metal hole array. The pillars enhance the optical transmission as well as the interaction between surface plasmon modes. This results in an observed splitting Delta omega/omega as large as 6%, at normal incidence, for the modes on the pillar side of the array. |
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