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. (C) 2002 Elsevier Science B.V. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 21-28 |
| Number of pages | 8 |
| Journal | Optics Communications |
| Volume | 201 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - 1 Jan 2002 |
Keywords
- optical trapping
- optical manipulation
- Laguerre-Gaussian beams
- interference patterns
- micro-particle rotation
- ORBITAL ANGULAR-MOMENTUM
- GAUSSIAN LASER MODES
- BIREFRINGENT MICRO-OBJECTS
- MICROSCOPIC PARTICLES
- BEAMS
- ALIGNMENT
- LIGHT
- POLARIZATION
- TWEEZERS
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