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Proceedings Paper

Continuous motion of interference patterns using the angular Doppler effect
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Paper Abstract

We demonstrate the use of the angular Doppler effect to obtain continuous motion of interference patterns. A small frequency shift between two beams can create such a moving pattern. By rotating a half wave plate in one arm of an interferometer, frequency shifts in the optical domain from less than 1 Hertz to kHz are achieved. We apply moving interference patterns in an optical tweezers set-up to enable controlled and continuous motion of optically trapped particles and structures.

Paper Details

Date Published: 2 September 2003
PDF: 5 pages
Proc. SPIE 5121, Laser Processing of Advanced Materials and Laser Microtechnologies, (2 September 2003); doi: 10.1117/12.513850
Show Author Affiliations
L. Paterson, Univ. of St. Andrews (United Kingdom)
M. P. MacDonald, Univ. of St. Andrews (United Kingdom)
Jochen Arlt, Univ. of St. Andrews (United Kingdom)
Wilson Sibbett, Univ. of St. Andrews (United Kingdom)
Kishan Dholakia, Univ. of St. Andrews (United Kingdom)
K. Volke-Sepulveda, Instituto Nacional de Astrofisica Optica y Electronica (Mexico)


Published in SPIE Proceedings Vol. 5121:
Laser Processing of Advanced Materials and Laser Microtechnologies
Friedrich H. Dausinger; Vitali I. Konov; Vladimir Yu. Baranov; Vladislav Ya. Panchenko, Editor(s)

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