2003/12/09 by Stefan A. Maier, Paul E. Barclay, Thomas J. Johnson +3 · 1 citation
Engineering · Physics and Astronomy · #Absorption (acoustics) #Advanced Fiber Optic Sensors #Dispersion (optics) #Excitation #Materials science #Optical fiber #Optics #Optoelectronics #Photonic and Optical Devices #Physics #Planar #Plasmon #Plasmonic and Surface Plasmon Research #Surface plasmon #Waveguide #physics.optics
paper · pdf · doi:10.1063/1.1753060
10 pages, 2 figures
arxiv created 2003/12/09 · openalex publication_date 2004/05/06 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
A metal nanoparticle plasmon waveguide for electromagnetic energy transport utilizing dispersion engineering to increase lateral energy confinement via a two-dimensional pattern of Au dots on an optically thin Si membrane is described. Using finite-difference time-domain simulations and coupled-mode theory, we show that phase-matched evanescent excitation from conventional fiber tapers is possible with efficiencies >90% for realistic geometries. Energy loss in this waveguide is mainly due to material absorption, allowing for 1/e energy decay distances of about 320 μm for excitation at telecommunication frequencies. This concept can be extended to the visible regime and promises applications in optical energy guiding, optical sensing, and switching.