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Broadband high-efficiency surface-plasmon-polariton coupler with silicon-metal interface
KTH, School of Information and Communication Technology (ICT), Optics and Photonics.
KTH, School of Information and Communication Technology (ICT), Optics and Photonics.
KTH, School of Information and Communication Technology (ICT), Optics and Photonics.
KTH, School of Information and Communication Technology (ICT), Optics and Photonics.
2009 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 95, no 1Article in journal (Refereed) Published
Abstract [en]

A high efficiency surface plasmonic coupler composed of a tapered silicon strip waveguide and a subwavelength scale metal gap waveguide is experimentally demonstrated. By tuning the parameters of the taper and the metal gap, the theoretical coupling efficiencies can be as high as 88% for a wide wavelength range. A silicon-gold plasmonic coupler is then fabricated, demonstrating 35% coupling efficiency per facet. Our experimental demonstration is a crucial step for hybrid integration of plasmonic components with conventional dielectric components.

Place, publisher, year, edition, pages
2009. Vol. 95, no 1
Keyword [en]
slot wave-guides, transport, light
Identifiers
URN: urn:nbn:se:kth:diva-18604DOI: 10.1063/1.3168653ISI: 000267983200091Scopus ID: 2-s2.0-67650501482OAI: oai:DiVA.org:kth-18604DiVA: diva2:336651
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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