All-Optical Multipulse Pump-Probe Method for Selective Control of Magnetization Precessions in Magnetic Multilayers

Autor:	Manfred Albrecht, Holger Schmidt, M. Jaris, Cassidy Berk, Fabian Ganss
Rok vydání:	2019
Předmět:	Optical pumping Physics Magnetization Magnetic structure Spin wave Femtosecond Precession Resonance Nonlinear optics Electrical and Electronic Engineering Atomic physics Atomic and Molecular Physics and Optics
Zdroj:	IEEE Journal of Selected Topics in Quantum Electronics. 25:1-5
ISSN:	1558-4542 1077-260X
DOI:	10.1109/jstqe.2019.2899779
Popis:	A method to all-optically selectively excite and probe individual resonances within a multimodal system is demonstrated. As an example, the method is applied to control spin waves within a multilayer magnetic structure. By tuning the timing of two femtosecond pump pulses, the magnetization precession of a particular spin wave resonance can be selectively quenched while maintaining the precession of the other. This control depends on the relative positions of the magnetization vectors within their precessional trajectory and on the power ratio of the pump pulses. A representation of the position of the vectors in the complex plane is introduced, which serves as a convenient means for manipulation of the systems.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9cb44250407949a332a2e32ff1b94d14 https://doi.org/10.1109/jstqe.2019.2899779 Zobrazit plný text záznamu