Calculation of optically induced forces arising in conjunction with dynamic holographic assembly

Stephen H. Simpson; David C. Benito; Simon Hanna

doi:10.1117/12.795127

29 August 2008 Calculation of optically induced forces arising in conjunction with dynamic holographic assembly

Stephen H. Simpson, David C. Benito, Simon Hanna

Proceedings Volume 7038, Optical Trapping and Optical Micromanipulation V; 70381E (2008) https://doi.org/10.1117/12.795127
Event: NanoScience + Engineering, 2008, San Diego, California, United States

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.

Citation Download Citation

Stephen H. Simpson, David C. Benito, and Simon Hanna "Calculation of optically induced forces arising in conjunction with dynamic holographic assembly", Proc. SPIE 7038, Optical Trapping and Optical Micromanipulation V, 70381E (29 August 2008); https://doi.org/10.1117/12.795127

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