## Excitation efficiency of a morphology-dependent resonance by a focused Gaussian beam

JOSA A, Vol. 15, Issue 12, pp. 2986-2994 (1998)

http://dx.doi.org/10.1364/JOSAA.15.002986

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### Abstract

The excitation efficiency of a morphology-dependent resonance (MDR) by an incident beam is defined as the fraction of the beam power channeled into the MDR. The efficiency is calculated for a focused Gaussian beam of arbitrary width incident on either a spherical particle or a cylindrical fiber located at an arbitrary position in the plane of the beam waist. In each case a simple formula for the efficiency is derived by use of the localized approximation for the beam-shape coefficients in the partial-wave expansion of the beam. The physical interpretation of the efficiency formulas is also discussed.

© 1998 Optical Society of America

**OCIS Codes**

(290.0290) Scattering : Scattering

(290.4020) Scattering : Mie theory

**History**

Original Manuscript: June 17, 1998

Revised Manuscript: August 21, 1998

Manuscript Accepted: September 1, 1998

Published: December 1, 1998

**Citation**

James A. Lock, "Excitation efficiency of a morphology-dependent resonance by a focused Gaussian beam," J. Opt. Soc. Am. A **15**, 2986-2994 (1998)

http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-15-12-2986

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### References

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