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Opt Express. 2004 Aug 23;12(17):4123-8.

Manipulation and arrangement of biological and dielectric particles by a lensed fiber probe.


An optical trapping system with a single-mode lensed fiber probe inserted at an angle is built; this system is simpler and more flexible than conventional optical tweezers. Two lasers, with 632.8- and 1550-nm wavelengths, are employed to trap and manipulate yeast cells and polystyrene microspheres. Nine yeast cells are manipulated to form a letter "T." Finally, the manipulation performed with various inclination angles, particle materials, laser wavelengths, and laser powers is analyzed experimentally.

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