Comment on "Optical Orbital Angular Momentum from the Curl of Polarization"
State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China.Physical Review Letters (Impact Factor: 7.51). 05/2011; 106(18):189301; author reply 189302. DOI: 10.1103/PhysRevLett.106.189301
A Comment on the Letter by Xi-Lin Wang et al., Phys. Rev. Lett. 105, 253602 (2010). The authors of the Letter offer a Reply.
Article: Wang et al. Reply:
Article: Wang et al. Reply:[Show abstract] [Hide abstract]
ABSTRACT: A Reply to the Comment by Shaohui Yan, Baoli Yao, and Ming Lei.
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ABSTRACT: In this paper, we theoretically propose a new method to generate and tune the optical orbital angular momentum. A focused Gaussian beam passing through an optical superlattice under the electro-optic effect carries orbital angular momentum (OAM). This kind of OAM arises from the curl of the polarization. By adjusting the external electric field, the beam waist radius and the crystal length, we can obtain a dramatic variation of the OAM across the output light transverse section. This invention will find applications in the area of optical manipulation.
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