## Internal and near-surface electromagnetic fields for an infinite cylinder illuminated by an arbitrary focused beam

JOSA A, Vol. 16, Issue 1, pp. 160-166 (1999)

http://dx.doi.org/10.1364/JOSAA.16.000160

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### Abstract

A cylindrical coordinate separation-of-variables solution is developed for the determination of the internal and the near-surface electromagnetic fields for the arrangement of a focused beam incident upon a homogeneous infinite circular cylinder. The angle of incidence and the focal point location of the beam, as well as the beam type (e.g., fundamental Gaussian beam, doughnut mode beam, TEM_{11} mode beam), can be arbitrarily specified. As a demonstration of the procedure, gray-level and contour plots of calculated electric-field distributions for a fundamental Gaussian beam focused on a cylinder are presented for six different angle-of-incidence and relative index-of-refraction combinations.

© 1999 Optical Society of America

**OCIS Codes**

(260.2110) Physical optics : Electromagnetic optics

(290.0290) Scattering : Scattering

(290.4020) Scattering : Mie theory

(290.5850) Scattering : Scattering, particles

**Citation**

J. P. Barton, "Internal and near-surface electromagnetic fields for an infinite cylinder illuminated by an arbitrary focused beam," J. Opt. Soc. Am. A **16**, 160-166 (1999)

http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-16-1-160

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