Plasmon waveguide for optical far/near-field conversion
- 31 December 2001
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 79 (27) , 4583-4585
- https://doi.org/10.1063/1.1428405
Abstract
A plasmon waveguide was designed and fabricated using a metal-coated silicon wedge structure that converts propagating far-field light to the near field. Illumination of the waveguide (plateau width 150 nm) caused transverse magnetic plasmon-mode excitation. Use of a near-field microscope allowed us to determine its beam width and propagation length as 150 nm and 2.5 μm, respectively.
Keywords
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