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Proceedings Paper

Calculation of optically induced forces arising in conjunction with dynamic holographic assembly
Author(s): Stephen H. Simpson; David C. Benito; Simon Hanna
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Paper Abstract

Holographic optical tweezers permit the simultaneous control of multiple optical traps. In this paper we examine the use of such systems for the purposes of micromanipulation and assembly of microstructured materials. To this end, optically induced forces and torques on a variety of objects are evaluated using numerical and semi-analytical methods. In the following paper we describe implementations of these methods (the finite difference time domain and T-matrix methods respectively) and present some salient results before concentrating on a particular application that involves the use of entropic forces to promote aggregation between microspheres.

Paper Details

Date Published: 29 August 2008
PDF: 10 pages
Proc. SPIE 7038, Optical Trapping and Optical Micromanipulation V, 70381E (29 August 2008); doi: 10.1117/12.795127
Show Author Affiliations
Stephen H. Simpson, Univ. of Bristol (United Kingdom)
David C. Benito, Univ. of Bristol (United Kingdom)
Simon Hanna, Univ. of Bristol (United Kingdom)

Published in SPIE Proceedings Vol. 7038:
Optical Trapping and Optical Micromanipulation V
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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