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Updated: May 19, 2026

Effect of Bending on the Electrical Characteristics of Flexible Organic Single Crystal-based Field-effect Transistors
Published on: November 7, 2016
Induction of optical vortex in the crystals subjected to bending stresses
Ihor Skab1, Yurij Vasylkiv, Rostyslav Vlokh
1Institute of Physical Optics, 23 Dragomanov Street, 79005 Lviv, Ukraine.
Abstract:
We describe a method for generation of optical vortices that relies on bending of transparent parallelepiped-shaped samples fabricated from either glass or crystalline solid materials. It is shown that the induced singularity of optical indicatrix rotation leads in general to appearance of a mixed screw-edge dislocation of the phase front of outgoing optical beam. At the same time, some specified geometrical parameters of the sample can ensure generation of a purely screw dislocation of the phase front and, as a result, a singly charged canonical optical vortex.
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