Abstract
A multi-plane adaptive-additive algorithm is developed for optimizing
computer-generated holograms for the reconstruction of traps in three-dimensional
(3D) spaces. This algorithm overcomes the converging stagnation problem of the
traditional multi-plane Gerchberg-Saxton algorithm and improves the diffraction
efficiency of the holograms effectively. The optimized holograms are applied in a
holographic optical tweezers (HOT) platform. Additionally, a computer program is
developed and integrated into the HOT platform for the purpose of achieving the
interactive control of traps. Experiments demonstrate that the manipulation of
micro-particles into the 3D structure with optimized holograms can be carried out
effectively on the HOT platform.
© 2011 Chinese Optics Letters
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