Inhomogeneous illumination causes charge separation in a lithium niobate crystal which results in field gradients in proximity to the crystal surface. We recorded diverse patterns and utilized the field gradients to trap micro- and nanoparticles.
© 2006 Optical Society of America
(050.0050) Diffraction and gratings : Diffraction and gratings
(050.2770) Diffraction and gratings : Gratings
(350.0350) Other areas of optics : Other areas of optics
(350.4990) Other areas of optics : Particles
F. Y. Kuhnert, J. R. Adleman, H. A. Eggert, D. Psaltis, and K. Buse, "Trapping and Manipulation of Micro- and Nanoparticles on the Surfaces of Lithium Niobate Crystals Utilizing Light-Induced Electric Space Charge Fields," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper CThZ2.
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