Abstract

We report numerical simulations of the coupling of waves, either propagating or evanescent, with the eigenmodes of dielectric nanocylinders and nanospheres upon substrates. The multiple interaction of light between these objects and the dielectric surface at which the evanescent waves are created is taken into account. In this way, we present an accurate procedure for predicting and controlling the creation of large field enhancements concentrated both within and near the nanoparticle compared with the angle of incidence and the state of polarization.

© 2000 Optical Society of America

Resonant near-field eigenmodes of nanocylinders on flat surfaces under both homogeneous and inhomogeneous lightwave excitation

José Ricardo Arias-González and Manuel Nieto-Vesperinas
J. Opt. Soc. Am. A 18(3) 657-665 (2001)

Fundamentals and model of photonic-force microscopy

M. Lester, J. R. Arias-González, and M. Nieto-Vesperinas
Opt. Lett. 26(10) 707-709 (2001)

Radiation pressure over dielectric and metallic nanocylinders on surfaces: polarization dependence and plasmon resonance conditions

J. R. Arias-González and M. Nieto-Vesperinas
Opt. Lett. 27(24) 2149-2151 (2002)

Optical forces on microparticles in an evanescent laser field

Marcelo Lester and Manuel Nieto-Vesperinas
Opt. Lett. 24(14) 936-938 (1999)

Fano resonances in prism-coupled square micropillars

Ho-Tong Lee and Andrew W. Poon
Opt. Lett. 29(1) 5-7 (2004)