Open AccessDiffractive optical elements for the generating cylindrical beams of different orders
Author(s) -
S. A. Degtyarev,
Dmitry Savelyev,
С. В. Карпеев
Publication year - 2019
Publication title -
kompʹûternaâ optika
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.491
H-Index - 29
eISSN - 2412-6179
pISSN - 0134-2452
DOI - 10.18287/2412-6179-2019-43-3-347-355
Subject(s) - optics , polarization (electrochemistry) , diffraction efficiency , diffraction , grating , diffraction grating , physics , phase (matter) , materials science , chemistry , quantum mechanics
The paper proposes a method for calculating the phase function of subwavelength diffractive optical elements. The method is based on diffraction gratings with a varying period for generating vector beams with arbitrary-order cylindrical polarization. Formulas for the phase function of the grating are obtained with due regard for the period variation for increasing the efficiency of the polarization conversion of the incident beam. The obtained phase functions are supposed to be used for creating polarization-conversion diffractive optical elements for noise-resistant optical communication systems.