Abstract
With the use of optical near-field techniques, it is now possible to excite or observe surface plasmons with high lateral resolution. A theoretical study is presented of surface plasmon excitation by near-field optical probes and the influence of well-defined structures on surface plasmon propagation and surface plasmon detection in the far field. The generation and the diffraction of the surface plasmon is calculated by using a theoretical scheme founded upon a first-order perturbation expansion of the Rayleigh–Fano method. A very good agreement is obtained between numerical and experimental results. The theoretical tools used should prove a useful guideline for future experiments of nanooptics with surface plasmons.
© 2001 Optical Society of America
Full Article | PDF ArticleMore Like This
B. Wang and P. Lalanne
J. Opt. Soc. Am. A 27(6) 1432-1441 (2010)
José Ricardo Arias-González and Manuel Nieto-Vesperinas
J. Opt. Soc. Am. A 18(3) 657-665 (2001)
J. C. Weeber, F. de Fornel, and J. P. Goudonnet
J. Opt. Soc. Am. A 13(5) 944-951 (1996)