Rotation of microparticles with Bessel beams generated by diffractive elements

S. N. Khonina Image Processing Systems Institute, Russian Academy of Sciences, 151 Molodogvardejskaya, Samara, 443001, Russia

V. V. Kotlyar Image Processing Systems Institute, Russian Academy of Sciences, 151 Molodogvardejskaya, Samara, 443001, Russia

R. V. Skidanov Image Processing Systems Institute, Russian Academy of Sciences, 151 Molodogvardejskaya, Samara, 443001, Russia

V. A. Soifer Image Processing Systems Institute, Russian Academy of Sciences, 151 Molodogvardejskaya, Samara, 443001, Russia

K. Jefimovs Department of Physics, University of Joensuu, PO Box 111, FIN-80101, Joensuu, Finland

J. Simonen Department of Physics, University of Joensuu, PO Box 111, FIN-80101, Joensuu, Finland

J. Turunen Department of Physics, University of Joensuu, PO Box 111, FIN-80101, Joensuu, Finland

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Abstract

We show that imaging a non-diverging Bessel beam by a spherical lens leads to the generation of a diverging Bessel beam. Expressions for the projections of the Umov-Poynting vector for a two-dimensional TE-polarized Bessel beam and a three-dimensional paraxial linearly polarized Bessel beam are derived. A fifth-order Bessel beam is produced using a single optical element-a 16-level phase-only diffractive helical axicon fabricated using electron beam lithography. This beam was successfully used to trap and rotate 5-10 μm diameter yeast particles and polystyrene beads of diameter 5 μm.

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Rotation of microparticles with Bessel beams generated by diffractive elements

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Rotation of microparticles with Bessel beams generated by diffractive elements

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