Depth-minimized, large period half-wave corrugation for linear to radial and azimuthal polarization transformation by grating-mode phase management

Abstract : The transformation of the polarization distribution of a laser beam from linear to radial and azimuthal by means of a subwavelength binary corrugation etched in a high-index substrate faces fabrication difficulties and an inherent contradiction preventing the achievement of both conditions of 100% transmission and of π phase difference between polarization components. The contradiction is solved by resorting to an easily fabricable high-index corrugation on a low-index substrate where a larger period gives rise to grating-mode reflection/transmission phases that permit the fulfillment of both conditions with a depth-minimized corrugation. From the principle of the solution, a targeted numerical search gives the complete set of the corresponding shallow structures, achieving polarization rotation in a fitting analytical form versus normalized variables.
Type de document :
Article dans une revue
Journal of the Optical Society of America A, Optical Society of America, 2011, 28 (11), pp.2235-2242
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https://hal-ujm.archives-ouvertes.fr/ujm-00630030
Contributeur : Yves Jourlin <>
Soumis le : vendredi 7 octobre 2011 - 08:54:24
Dernière modification le : jeudi 11 janvier 2018 - 06:20:35

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  • HAL Id : ujm-00630030, version 1

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Thomas Kampfe, O. Parriaux. Depth-minimized, large period half-wave corrugation for linear to radial and azimuthal polarization transformation by grating-mode phase management. Journal of the Optical Society of America A, Optical Society of America, 2011, 28 (11), pp.2235-2242. 〈ujm-00630030〉

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