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Plasmonic dichroism and all-optical magnetization switching in nanophotonic structures with GdFeCoстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Zimnyakova Polina E., Ignatyeva Daria O., Kalish Andrey N., Han Xiufeng, Belotelov Vladimir I.
- Журнал: Optics Letters
- Том: 47
- Номер: 23
- Год издания: 2022
- Издательство: Optical Society of America
- Местоположение издательства: United States
- Первая страница: 6049
- Последняя страница: 6052
- DOI: 10.1364/ol.472046
- Аннотация: We report on a phenomenon of plasmonic dichroism observed in magnetic materials with transverse magnetization under excitation of surface plasmon polariton waves. The effect originates from the interplay of the two magnetization-dependent contributions to the material absorption, both of which are enhanced under plasmon excitation. Plasmonic dichroism is similar to circular magnetic dichroism, which is at the base of all-optical helicity-dependent switching (AO-HDS) but observed for linearly polarized light, and the dichroism acts upon in-plane magnetized films, where AO-HDS does not take place. We show by electromagnetic modeling that laser pulses exciting counter-propagating plasmons can be used to write +M or −M states in a deterministic way independent of the initial magnetization state. The presented approach applies to various ferrimagnetic materials with in-plane magnetization, exhibiting the phenomenon of all-optical switching of a thermal nature and broadens the horizons of their applications in data storage devices.
- Добавил в систему: Игнатьева Дарья Олеговна