All-optical magnetization recording by tailoring optical excitation parameters

Autor:	Martin Aeschlimann, Sabine Alebrand, Mirko Cinchetti, Daniel Steil, Alexander Hassdenteufel
Rok vydání:	2011
Předmět:	Materials science business.industry Physics::Optics Condensed Matter Physics Laser Electronic Optical and Magnetic Materials Pulse (physics) law.invention Magnetization Wavelength law Picosecond Femtosecond Chirp Optoelectronics business Excitation
Zdroj:	Physical Review B. 84
ISSN:	1550-235X 1098-0121
DOI:	10.1103/physrevb.84.224408
Popis:	We investigate the dependency of all-optical magnetization switching on the properties of the exciting laser pulse by specifically tailoring all accessible laser parameters---pulse duration, wavelength, chirp, and bandwidth---over a wide range. Our results show that all-optical switching can be achieved with picosecond instead of femtosecond laser sources of various wavelengths, which considerably relaxes technological feasibility of this technique. The most striking implication is that, in contrast to all current knowledge, a strong photoinduced nonequilibrium in the electronic system is not necessary to achieve magnetization switching with light.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6c8e428c68dcd0ae27d4dd2329956f58 https://doi.org/10.1103/physrevb.84.224408 Zobrazit plný text záznamu