Shaping of optical vector beams in three dimensions

LETO / LETO-3 Spatial Light Modulators
Beam Shaping / Beam Steering Digital-/ Computer Holography/ CGH
Published on:
Authors: Chenliang Chang and Yuan Gao and Jianpei Xia and Shouping Nie and Jianping Ding
Abstract:

“We present a method of shaping three-dimensional (3D) vector beams with prescribed intensity distribution and controllable polarization state variation along arbitrary curves in three dimensions. By employing a non-iterative 3D beam-shaping method developed for the scalar field, we use two curved laser beams with mutually orthogonal polarization serving as base vector components with a high-intensity gradient and controllable phase variation, so that they are collinearly superposed to produce a 3D vector beam. We experimentally demonstrate the generation of 3D vector beams that have a polarization gradient (spatially continuous variant polarization state) along 3D curves, which may find applications in polarizationmediated processes, such as to drive the motion of micro-particles.”

Restricted Access

Publication: Optics Letters
Issue/Year: Optics Letters Volume 42, Issue 19 pp. 3884-3887 (2017)
DOI: 10.1364/OL.42.003884
Link: https://doi.org/10.1364/OL.42.003884

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