Abstract

We present the numerical modelling of a novel all-fiber optical tweezers, whose efficacy has been recently demonstrated. The device, realized by properly shaping the end-face of a fiber bundle, exploits total internal reflection to enhance the trapping efficiency. In order to allow the optimization of the performance, the trapping efficiency is evaluated as a function of different geometrical parameters of the structure. Given the peculiar spatial and angular distribution of the optical field, a new figure of merit is adopted to assess tweezers performance.

© 2008 Optical Society of America

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History
Original Manuscript: June 23, 2008
Manuscript Accepted: August 28, 2008
Revised Manuscript: August 28, 2008
Published: October 17, 2008

References

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Author Affiliations

C. Liberale, E. Di Fabrizio

Università della Magna Graecia

F. Bragheri, P. Minzioni, I. Cristiani

University of Pavia

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