## Partial-wave representations of laser beams for use in light-scattering calculations

Applied Optics, Vol. 34, Issue 12, pp. 2133-2143 (1995)

http://dx.doi.org/10.1364/AO.34.002133

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### Abstract

In the framework of generalized Lorenz–Mie theory, laser beams are described by sets of beam-shape coefficients. The modified localized approximation to evaluate these coefficients for a focused Gaussian beam is presented. A new description of Gaussian beams, called standard beams, is introduced. A comparison is made between the values of the beam-shape coefficients in the framework of the localized approximation and the beam-shape coefficients of standard beams. This comparison leads to new insights concerning the electromagnetic description of laser beams. The relevance of our discussion is enhanced by a demonstration that the localized approximation provides a very satisfactory description of top-hat beams as well.

© 1995 Optical Society of America

**History**

Original Manuscript: June 27, 1994

Published: April 20, 1995

**Citation**

Gérard Gouesbet, James A. Lock, and Gérard Gréhan, "Partial-wave representations of laser beams for use in light-scattering calculations," Appl. Opt. **34**, 2133-2143 (1995)

http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-34-12-2133

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### References

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