VESTNIK of Samara University. Aerospace and Mechanical EngineeringVESTNIK of Samara University. Aerospace and Mechanical Engineering2542-04532541-7533Samara National Research University57710.18287/2541-7533-2008-0-2(15)-87-93UnknownCharacterization of optical vortices for micromanipulation purposesMorozovA. A.vest@ssau.ruSamara State Aerospace University1806200872879302062014Copyright © 2015, VESTNIK of the Samara State Aerospace University2015<p>Light beams with the orbital angular momentum in the problem of optical trapping and rotation of micro-objects are studied. Diffractive optical elements that generate a set of concentric rings of equal intensity for the optical trapping and rotation of opaque micro-objects are considered.</p>Vortical beamsgradient forceshypergeometrical beamsВихревые пучкиградиентные силыгипергеометрические пучки