OMITEC: Rotation of trapped structures
Rotation of trapped structures
Snapshots from experiments with
rotating asymmetric structures
*Click on images to enlarge them.
More in our publications:
A protozoa Paramecia were
"fed" by 5 micm
polystyrene microspheres. One of these spheres was trapped by
optical tweezers and served as an inner handle that rotated the whole
vacuole (see images a-d).
Two and three spots were ablated in
the polystyrene sphere of diameter 15 micm by UV laser pulse.
Due to this asymmetry the sphere rotated when it was trapped in optical
The asymmetric object consisted
polystyrene microspheres (diameter 1 micm) is placed on the surface.
If one of the microshere was trapped by the optical tweezers,
asymmetric scattering of the trapping beam caused rotation of the whole
P. Zemanek, L. Sramek, A. Jonas, Z.Moravcik, R. Janisch, M.
Liska: "Standing Wave Trap
and Single Beam Gradient Optical Trap - Experiments and Biological
Proceedings of SPIE 3820, 401-410, 1999. ABSTRACT
Jonas, L. Sramek, M. Liska, P. Zemanek : "Manipulation
of microobjects by means of the focused laser beam.",
Proceedings of SPIE,
3320, 104-110, 1998. ABSTRACT DOWNLOAD
L. Sramek, A. Jonas, M. Liska, P.
Zemanek : "Laser
trapping of micron sized objects: theory and experiment.",
Proceedings of SPIE
3580, 82-90, 1998. ABSTRACT DOWNLOAD
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Last modification: 11 Jul 2007