Broadband high-efficiency surface-plasmon-polariton coupler with silicon-metal interface
2009 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 95, no 1Article in journal (Refereed) Published
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
slot wave-guides, transport, light
IdentifiersURN: urn:nbn:se:kth:diva-18604DOI: 10.1063/1.3168653ISI: 000267983200091ScopusID: 2-s2.0-67650501482OAI: oai:DiVA.org:kth-18604DiVA: diva2:336651
QC 201005252010-08-052010-08-052011-01-24Bibliographically approved