We observe the transfer of orbital angular momentum to trapped particles in a nondiffracting Mathieu beam with a linear array of vortices with unitary topological charge distributed along the interfocal line of its elliptical rings.
© 2005 Optical Society of America
(050.1970) Diffraction and gratings : Diffractive optics
(140.3300) Lasers and laser optics : Laser beam shaping
(140.7010) Lasers and laser optics : Laser trapping
(170.4520) Medical optics and biotechnology : Optical confinement and manipulation
(260.1960) Physical optics : Diffraction theory
(350.4990) Other areas of optics : Particles
C. López-Mariscal, J. C. Gutiérrez-Vega, and K. Dholakia, "Observation of Orbital Angular Momentum Transfer to Particles Trapped in a Mathieu Beam," in Frontiers in Optics, OSA Technical Digest Series (Optical Society of America, 2005), paper FWT4.
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