Title :
Coherent spin dynamics induced by femtosecond pulses in ferromagnets
Author :
Bigot, J.-Y. ; Vomir, M.
Author_Institution :
Inst. de Phys. et Chimie des Mater. de Strasbourg, Univ. de Strasbourg, Strasbourg, France
Abstract :
According to the fundamental equations of the relativistic quantum electrodynamics (QED) describing the light matter interaction, a femtosecond laser pulse can instantaneously modify the spin dynamics in a ferromagnetic material. It is this physical phenomenon that precedes the laser induced demagnetization occurring at the femtosecond time scale, that we have investigated using femtosecond optical pulses.
Keywords :
ferromagnetic materials; light coherence; magnetisation; coherent spin dynamics; femtosecond laser pulse; femtosecond optical pulses; ferromagnetic material; ferromagnets; laser induced demagnetization; light matter interaction; relativistic quantum electrodynamics; Demagnetization; Laser theory; Magnetic materials; Magnetization; Nickel; Optical materials; Optical pulses; Pulse measurements; Ultrafast electronics; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5192018
