| Authors: | H. Shen, B. Maes | | Title: | Enhanced optical transmission through tapered metallic gratings | | Format: | International Journal | | Publication date: | 6/2012 | | Journal/Conference/Book: | Applied Physics Letters
| | Volume(Issue): | 100(24) p.241104 | | DOI: | 10.1063/1.4729005 | | Citations: | 38 (Dimensions.ai - last update: 15/12/2024)
27 (OpenCitations - last update: 10/5/2024)
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Abstract
To achieve non-resonant behavior, we propose a metallic grating device with linearly tapered slits. The tapering provides a gradual impedance variation from the entrance to the exit of the slits, leading to broadband and wide-angle enhanced transmission in the infrared. In addition, the light is strongly localized and enhanced at the slit exits, in contrast with straight slits. We describe the phenomenon with a transmission line model, that is in accordance with rigorous simulations. Related Research Topics
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