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Opt Lett. 2003 Apr 1;28(7):510-2.

Formation of linearly polarized light with axial symmetry by use of space-variant subwavelength gratings.

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  • 1Optical Engineering Laboratory, Faculty of Mechanical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel.

Abstract

We present a novel method for forming linearly polarized axially symmetric beams with various polarization orders that is based on computer-generated space-variant subwavelength gratings. We introduce and experimentally demonstrate that our space-variant polarization state manipulations are accompanied by a phase modification of a helical structure that results from the Pancharatnam-Berry phase. We have verified the polarization properties of our gratings for laser radiation at 10.6-microm wavelength.

PMID:
12696599
[PubMed]
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