Efficient Excitation of Channel Plasmons in Tailored, UV-Lithography-Defined V-Grooves

C. L. C. Smith, A. H. Thilsted, C. E. Garcia-Ortiz, I. P. Radko, R. Marie, C. Jeppesen, C. Vannahme, S. I. Bozhevolnyi, A. Kristensen

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review


We demonstrate the highly efficient (>50%) conversion of freely propagating light to channel plasmon-polaritons (CPPs) in gold V-groove waveguides using compact 1.6 mu m long waveguide-termination coupling mirrors. Our straightforward fabrication process, involving UV-lithography and crystallographic silicon etching, forms the coupling mirrors innately and ensures exceptional-quality, wafer-scale device production. We tailor the V-shaped profiles by thermal silicon oxidation in order to shift initially wedge-located modes downward into the V-grooves, resulting in well-confined CPPs suitable for nanophotonic applications.
TidsskriftNano Letters
Udgave nummer3
Sider (fra-til)1659-1664
StatusUdgivet - 2014


Dyk ned i forskningsemnerne om 'Efficient Excitation of Channel Plasmons in Tailored, UV-Lithography-Defined V-Grooves'. Sammen danner de et unikt fingeraftryk.