Abstract

We analyze the intensity of a Laguerre–Gaussian correlated Schell-model (LGCSM) beam focused by a thin lens near the focal region, and it is found that a controllable optical cage can be formed through varying the initial spatial coherence width. Furthermore, we carry out experimental measurement of the intensity of a focused LGCSM beam, and we observe that the optical cage is indeed formed in experiment. Our results will be useful for trapping particles or atoms.

© 2014 Optical Society of America

Experimental demonstration of a Laguerre-Gaussian correlated Schell-model vortex beam

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Elliptical Laguerre-Gaussian correlated Schell-model beam

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