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Authors: H. Shen, A. Abass, M. Burgelman, B. Maes
Title: Tailored and tapered metallic gratings for enhanced absorption or transmission
Format: International Conference Proceedings
Publication date: 7/2012
Journal/Conference/Book: ICTON 2012 (International Conference on Transparent Optical Networks) (invited)
Editor/Publisher: IEEE, 
Volume(Issue): p.Mo.B5.4
Location: Coventry, United Kingdom
DOI: 10.1109/icton.2012.6254401
Citations: Look up on Google Scholar
Download: Download this Publication (859KB) (859KB)


Plasmonic structures, such as metallic gratings and apertures, provide unusual abilities to modify the absorption or the transmission of thin-layered devices. In order to optimize the absorption in thin-film solar cells, we introduce complex grating geometries, implementing multiple periodicities and blazing. These gratings optimize the diffraction efficiency and increase the number of accessible modes. On the other hand, in order to achieve enhanced transmission at infrared wavelengths, we propose tapered apertures. The non-resonant funnelling phenomena provide for broadband and wide-angle focusing opportunities.

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