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Opt Lett. 2002 Jul 1;27(13):1141-3.

Space-variant Pancharatnam-Berry phase optical elements with computer-generated subwavelength gratings.

Abstract

Space-variant Pancharatnam-Berry phase optical elements based on computer-generated subwavelength gratings are presented. By continuously controlling the local orientation and period of the grating we can achieve any desired phase element. We present a theoretical analysis and experimentally demonstrate a Pancharatnam-Berry phase-based diffraction grating for laser radiation at a wavelength of 10.6microm.

PMID:
18026387

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