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M P MacDonald, K Volke-Sepulveda, L Paterson, J Arlt, W Sibbett, and K Dholakia (2002)

Revolving interference patterns for the rotation of optically trapped particles

Optics Comm. 201:21–28.

Optically trapped objects are rotated controllably in the interference pattern between a Laguerre-Gaussian (LG) beam and a Gaussian beam. In this work the interference pattern is analysed and its properties as it propagates are modelled, showing the important role played by the Guoy-phase of the two interfering beams. An analysis of producing controlled rotation of the interference pattern using a glass plate is presented demonstrating the ease with which the rotation can be controlled. (C) 2002 Elsevier Science B.V. All rights reserved.
doi:10.1016/S0030-4018(01)01652-2