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Continuous motion of interference patterns using the angular Doppler-effect

Research output: Chapter in Book/Report/Conference proceedingConference contribution


L Paterson, M P Macdonald, K Volke-Sepulveda, J Arlt, Wilson Sibbett, Kishan Dholakia

School/Research organisations


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.



Original languageEnglish
Title of host publicationLaser processing of advanced materials and laser microtechnologies : International Conference on Lasers, Applications, and Technologies 2002 : 22-27 June 2002, Moscow, Russia
EditorsF H Dausinger, V I Konov, V Y Baranov, V Y Panchenko
ISBN (Print)0-8194-4981-4
Publication statusPublished - 2003

Publication series

NameSPIE proceedings series
ISSN (Print)0277-786X

    Research areas


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ID: 2946794