|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ИНХС РАН |
||
One-dimensional optomagnonic microcavities for selective excitation of perpendicular standing spin wavesстатья
- Авторы: Ozerov V.A., Sylgacheva D.A., Kozhaev M.A., Mikhailova T., Berzhansky V.N., Hamidi Mehri, Zvezdin A.K., Belotelov V.I.
- Журнал: Journal of Magnetism and Magnetic Materials
- Том: 543
- Год издания: 2022
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 168167
- DOI: 10.1016/j.jmmm.2021.168167
- Аннотация: Here we propose a method of the excitation of perpendicular standing spin waves (PSSWs) of different orders in an optomagnonic microcavity by ultrashort laser pulses. The microcavity is formed by a magnetic dielectric film surrounded by dielectric non-magnetic Bragg mirrors. Optical cavity modes in the magnetic layer provide concentration and strongly non-uniform distribution of the optical power over the layer thickness and therefore induce the effective field of the inverse Faraday effect also spatially non-uniform. It results in excitation of PSSWs. PSSWs whose wavevector is closest to the wavevector characterizing distribution of the inverse Faraday effect field are excited most efficiently. Consequently, a key advantage of this approach is a selectivity of the PSSW excitation which allows to launch PSSWs of required orders only. All-optical operation of the optomagnonic cavities opens new possibilities for their applications for quantum technologies.
- Добавил в систему: Белотелов Владимир Игоревич