Electric field controlled switching of an optical vortex charge with a liquid crystal cell

被引：0

作者：

Krupych, Oleh ^{[1
,2
]}

Dudok, Taras ^{[1
]}

Skab, Ihor ^{[1
]}

Nastishin, Yuriy ^{[3
]}

Hrabchak, Zinaida ^{[3
]}

Chernenko, Albert ^{[3
]}

Buluy, Oleksandr ^{[4
]}

Zelenov, Pavlo ^{[4
]}

Nazarenko, Vassili ^{[4
,5
]}

Kurochkin, Oleksandr ^{[4
,5
]}

Vlokh, Rostyslav ^{[1
]}

机构：

[1] Ivan Franko Natl Univ Lviv, Vlokh Inst Phys Opt, 23 Dragomanov Str, UA-79005 Lvov, Ukraine

[2] Ivan Franko Natl Univ Lviv, Dept Optoelect & Informat Technol, 107 Tarnavskogo Str, UA-79017 Lvov, Ukraine

[3] Hetman Petro Sahaidachnyi Natl Army Acad, 32 Heroes Maidan Str, UA-79026 Lvov, Ukraine

[4] Natl Acad Sci Ukraine, Inst Phys, 46 Nauky Ave, UA-03028 Kyiv, Ukraine

[5] POLISH ACAD SCI, Inst Phys Chem, Kasprzaka 44-52, PL-01224 WARSAW, Poland

来源：

OPTICS COMMUNICATIONS | 2025年 / 579卷

关键词：

VORTICES GENERATION; LASER-BEAMS; LIGHT; DISLOCATIONS; PHASE;

D O I：

10.1016/j.optcom.2025.131593

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Relations between the topological charge l of the optical vortex and the topological strengths of the nematic defect generating it are discussed. A voltage-driven effect switching the optical vortex charge from 1l1 = 1 to 1l1 = 2 for a nematic cell assembled from substrates providing circular and linear planar alignment of the nematic director is reported. The switching of the optical vortex charge is evidenced by the transformations of two into four extinction brushes in the optical polarization texture and of the single-spiral into the double-spiral pattern in the Mach-Zehnder interferograms.

引用

页数：6

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