Nanofocusing radially-polarized beams for high-throughput funneling of optical energy to the near field
Year: 2010
Authors: Chen X.W., Sandoghdar V., Agio M.
Autors Affiliation: 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.
Journal/Review: OPTICS EXPRESS
Volume: 18 (10) Pages from: 10878 to: 10887
More Information: 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.KeyWords: Surface-plasmons; Light; Microscopy; Tip; Fluorescence; Excitation; Probes; Waves; SizeDOI: 10.1364/OE.18.010878ImpactFactor: 3.753Citations: 35data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-10References taken from IsiWeb of Knowledge: (subscribers only)