Abstract
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.
Original language | English |
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Pages (from-to) | 21-28 |
Number of pages | 8 |
Journal | Optics Communications |
Volume | 201 |
Issue number | 1-3 |
Early online date | 27 Nov 2001 |
DOIs | |
Publication status | Published - 1 Jan 2002 |
Keywords
- Interference patterns
- Laguerre-Gaussian beams
- Micro-particle rotation
- Optical manipulation
- Optical trapping
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering