Optical orientation and rotation of trapped red blood cells with Laguerre-Gaussian mode.

@article{Dasgupta2011OpticalOA,
  title={Optical orientation and rotation of trapped red blood cells with Laguerre-Gaussian mode.},
  author={Raktim Dasgupta and Sunita Ahlawat and Ravi Shankar Verma and Pradeep K Gupta},
  journal={Optics express},
  year={2011},
  volume={19 8},
  pages={7680-8}
}
We report the use of Laguerre-Gaussian (LG) modes for controlled orientation and rotation of optically trapped red blood cells (RBCs). For LG modes with increasing topological charge the resulting increase in size of the intensity annulas led to trapping of the cells at larger tilt angle with respect to the beam axis and thus provided additional control on the stable orientation of the cells under trap. Further, the RBCs could also be driven as micro-rotors by a transfer of orbital angular… CONTINUE READING

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