25 August 2017 Formation of optical energy flows using the biaxial crystal
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Abstract
We demonstrate a simple scheme for generation the internal energy flows in optical fields based on a biaxial crystal. Such fields offer a variety of possibilities for microparticles’ trapping and control, for example: the intensity minima (maxima) due to the gradient forces; phase singularities are coupled with the vortex-like orbital flows; both the orbital and spin flows; the spin angular momentum density of the field may induce controllable spinning motion of particles; the output field pattern can be easily modified via the controllable input and output polarization, which provides suitable means for fine spatial positioning of the trapped particles.
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O. V. Angelsky, E. I. Kurek, A. P. Maksimyak, P. P. Maksimyak, "Formation of optical energy flows using the biaxial crystal", Proc. SPIE 10347, Optical Trapping and Optical Micromanipulation XIV, 1034736 (25 August 2017); doi: 10.1117/12.2273836; https://doi.org/10.1117/12.2273836
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