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Orbital angular momentum of light and the transformation of Laguerre-Gaussian laser modes

Physical Review A · 1992 · Vol. 45(11) · pp. 8185–8189

L. Allen✉(Leiden University)Marco W. Beijersbergen(Leiden University)R. J. C. Spreeuw(Leiden University)J. P. Woerdman(Leiden University)

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Abstract

Laser light with a Laguerre-Gaussian amplitude distribution is found to have a well-defined orbital angular momentum. An astigmatic optical system may be used to transform a high-order Laguerre-Gaussian mode into a high-order Hermite-Gaussian mode reversibly. An experiment is proposed to measure the mechanical torque induced by the transfer of orbital angular momentum associated with such a transformation.

Orbital Angular Momentum in Optics Experimental and Theoretical Physics Studies Sports Dynamics and BiomechanicsPhysicsAngular momentumOrbital angular momentum of lightAngular momentum of lightOrbital angular momentum multiplexingTotal angular momentum quantum numberLaguerre polynomialsAngular momentum couplingGaussianAzimuthal quantum number

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