ntvНаучно-технический вестник информационных технологий, механики и оптикиScientific and Technical Journal of Information Technologies, Mechanics and Optics2226-14942500-0373Университет ИТМО10.17586/2226-1494-2025-25-5-807-816ntv-510Research ArticleОПТИЧЕСКИЕ СИСТЕМЫ И ТЕХНОЛОГИИOPTICAL ENGINEERINGОптические спиновые токи в хиральных оптоволокнахOptical spin currents in chiral optical fibershttps://orcid.org/0000-0002-6515-9325ДерийИ. А.DeriyI. A.

Дерий Илья Александрович — младший научный сотрудник; младший научный сотрудник

Циндао, 266000

Санкт-Петербург, 197101

sc 57221052856

Ilya A. Deriy — Junior Researcher; Junior Reseacher

sc 57221052856

Qingdao, 266000

Saint Petersburg, 197101

ilya.deriy@metalab.ifmo.ruhttps://orcid.org/0000-0002-4851-0697КорнованД. Ф.KornovanD. F.

Корнован Данил Феодосьевич — кандидат физико-математических наук, инженер

Санкт-Петербург, 197101

sc 56644703300

Danil F. Kornovan — PhD (Physics & Mathematics), Engineer

sc 56644703300

Saint Petersburg, 197101

d.kornovan@metalab.ifmo.ruhttps://orcid.org/0000-0001-8155-9778ПетровМ. И.PetrovM. I.

Петров Михаил Игоревич — кандидат физико-математических наук, доцент, старший научный сотрудник

Санкт-Петербург, 197101

Researcher ID K-5924-2012

Mihail I. Petrov — PhD (Physics & Mathematics), Associate Professor, Senior Researcher

Researcher ID K-5924-2012

Saint Petersburg, 197101

m.petrov@metalab.ifmo.ruhttps://orcid.org/0000-0002-8215-0445БогдановА. А.BogdanovA. A.

Богданов Андрей Андреевич — кандидат физико-математических наук, старший научный сотрудник; старший научный сотрудник, доцент практики

Циндао, 266000

Санкт-Петербург, 197101

sc 56393877900

Andrey A. Bogdanov — PhD (Physics & Mathematics), Senior Researcher, Harbin Engineering University, Qingdao, 266000, China; Senior Researcher, Associate Professor of Practice

sc 56393877900

Qingdao, 266000

Saint Petersburg, 197101

a.bogdanov@metalab.ifmo.ruХарбинский Инженерный Университет; Университет ИТМОКитайHarbin Engineering University; ITMO UniversityChinaУниверситет ИТМОРоссияITMO UniversityRussian Federation202527102025255807816Copyright © Дерий И.А., Корнован Д.Ф., Петров М.И., Богданов А.А., 20252025Дерий И.А., Корнован Д.Ф., Петров М.И., Богданов А.А.Deriy I.A., Kornovan D.F., Petrov M.I., Bogdanov A.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://ntv.elpub.ru/jour/article/view/510

Представлено исследование оптических хиральных цилиндрических волноводов с точки зрения их применения в оптической спинтронике. Предложено использование хирального оптического цилиндрического волновода в роли оптического спинового диода. Рассчитана модовая структура рассматриваемого волновода и численно решено дисперсионное уравнение для фундаментальных мод волновода с азимутальным числом m = ±1 для различных значений параметра хиральности материала волновода. Получены выражения для потока энергии и оптического спинового тока внутри волновода. Показано, что в одномодовом режиме работы волновода, направление протекания оптических спиновых токов в волноводе определяется исключительно знаком параметра хиральности материала волновода, вне зависимости от азимутального числа и направления распространения моды. Следовательно, суперпозиция m = 1 и m = –1 мод, распространяющихся в разных направлениях, будет иметь нулевой поток энергии, но ненулевой оптический спиновой ток. Полученные результаты расширяют элементную базу оптической спинтроники и открывают новые пути для создания энергоэффективных оптических вычислительных систем.

This paper is devoted to the study of optical chiral cylindrical waveguides from the point of view of their application in optical spintronics. In the paper, it is proposed to use a chiral optical cylindrical waveguide as an optical spin diode. The mode structure of the waveguide under consideration is calculated and the dispersion equation for fundamental modes of the waveguide with an azimuthal number m = ±1 is numerically solved for various values of the chirality parameter of the waveguide material. Expressions for the energy flux and the optical spin current inside the waveguide are derived. It is shown that in the single-mode regime, the direction of the optical spin currents in the waveguide is determined exclusively by the sign of the chirality parameter of the waveguide material, regardless of the azimuthal number and the direction of mode propagation. Due to this, the superposition of m = 1 and m = –1 modes propagating in opposite directions will have a zero energy flux, but a nonzero optical spin current. Our results expand the element base of optical spintronics and open up new ways for creating energy-efficient optical computing systems.

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The authors declare that there are no conflicts of interest present.