Enhanced Nonlinear Optical Effects with a Tapered Plasmonic Waveguide
- 30 December 2006
- journal article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 7 (2), 334-337
- https://doi.org/10.1021/nl062440f
Abstract
Infrared surface plasmon polaritons (SPPs) are concentrated in a laterally tapered planar Ag waveguide. The near field of SPPs excited with 1490 nm light at a Ag-sapphire interface is probed using the photoluminescence of upconverted Er ions at 550 and 660 nm. SPP interference patterns are observed that exhibit clear evidence of SPP concentration toward the taper end. The concentration leads to an enhancement of the upconversion luminescence intensity from Er energy levels that are populated by multiphoton processes.Keywords
This publication has 27 references indexed in Scilit:
- Metal-Enhanced Up-Conversion Fluorescence: Effective Triplet−Triplet Annihilation near Silver SurfaceNano Letters, 2005
- Creating Focused Plasmons by Noncollinear Phasematching on Functional GratingsNano Letters, 2005
- Excitation and superfocusing of surface plasmon polaritons on a silver-coated optical fiber tipOptics Communications, 2005
- Leaky and bound modes of surface plasmon waveguidesPhysical Review B, 2005
- Upconversion and Anti-Stokes Processes with f and d Ions in SolidsChemical Reviews, 2003
- Microscopic Origin of Surface-Plasmon Radiation in Plasmonic Band-Gap NanostructuresPhysical Review Letters, 2003
- Near-field observation of surface plasmon polariton propagation on thin metal stripesPhysical Review B, 2001
- Waveguiding in Surface Plasmon Polariton Band Gap StructuresPhysical Review Letters, 2001
- Power dependence of upconversion luminescence in lanthanide and transition-metal-ion systemsPhysical Review B, 2000
- Direct imaging of optical interference in erbium-doped Al_2O_3 waveguidesOptics Letters, 1996