Publication: Synthesis of full Poincare beams by means of uniaxial crystals
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2018-06
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IOP Publishing, Ltd.
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Abstract
A simple optical system is proposed to generate full-Poincare beams (FPBs), i.e. beams presenting all possible states of (total) polarization across their transverse section. The method consists in focusing a uniformly polarized laser beam onto a uniaxial crystal having its optic axis parallel to the propagation axis of the impinging beam. A simple approximated model is used to obtain the analytical expression of the beam polarization at the output of the crystal. The output beam is then proved to be a FPB. By changing the polarization state of the input field, full-Poincare beams are still obtained, but presenting different distributions of the polarization state across the beam section. Experimental results are reported, showing an excellent agreement with the theoretical predictions.
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© 2018 IOP Publishing Ltd.
This work has been partially supported by Spanish Ministerio de Economía y Competitividad under project FIS2016-75147.