Transformation of a high-order edge dislocation to optical vortices (spiral dislocations)
We theoretically show that an astigmatic transformation of an nth-order edge dislocation (a zero-intensity straight line) produces n optical elliptical vortices (spiral dislocations) with unit topological charge at the double focal distance from the cylindrical lens, located on a straight line perpe...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
Samara National Research University
2021-06-01
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Series: | Компьютерная оптика |
Subjects: | |
Online Access: | http://computeroptics.ru/eng/KO/Annot/KO45-3/450302e.html |
Summary: | We theoretically show that an astigmatic transformation of an nth-order edge dislocation (a zero-intensity straight line) produces n optical elliptical vortices (spiral dislocations) with unit topological charge at the double focal distance from the cylindrical lens, located on a straight line perpendicular to the edge dislocation, at points whose coordinates are the roots of an nth-order Hermite polynomial. The orbital angular momentum of the edge dislocation is proportional to the order n. |
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ISSN: | 0134-2452 2412-6179 |