Nanofocusing radially-polarized beams for high-throughput funneling of optical energy to the near field
Anno: 2010
Autori: Chen X.W., Sandoghdar V., Agio M.
Affiliazione autori: Swiss Fed Inst Technol, Phys Chem Lab, CH-8093 Zurich, Switzerland.
Abstract: We theoretically show that a weakly-focused radially polarized beam can excite surface-plasmon-polaritons in metal nanowires and nanocones with efficiencies of the order of 90% and large bandwidths. The coupling mechanism relies on the formation of a standing wave on the nanowire facet, which imposes a relationship between the operating wavelength and the nanowire radius. An immediate application of this finding is nanofocusing of optical energy for implementations of ultra-fast and high-throughput linear and nonlinear nanoscopies, optical nanolithographies, quantum nano-optics and photochemistry at the nanoscale.
Giornale/Rivista: OPTICS EXPRESS
Volume: 18 (10) Da Pagina: 10878 A: 10887
Maggiori informazioni: We thank F. De Angelis, E. Di Fabrizio, M. Celebrano, K.-G. Lee and S. Gotzinger for helpful conversations. This work was supported by ETH Zurich grant TH-49/06-1.Parole chiavi: Surface-plasmons; Light; Microscopy; Tip; Fluorescence; Excitation; Probes; Waves; SizeDOI: 10.1364/OE.18.010878Citazioni: 35dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-06-29Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)
