Micromanipulation in higher-order Bessel beams

We discuss experiments on micromanipulation in the higher-order Bessel beams generated by diffractive optical elements (DOEs). Comparison is made of the rotation efficiency in the Bessel beams of the fifth and tenth order. We show that a two-fold increase in the Bessel beam number results in about a two-fold increase of the linear velocity of the microparticle circular movement, despite the fact that the laser beam intensity shows over a three-fold decrease.