Title :
Generation of ultrashort acoustic pulses in cobalt by ballistic electrons in gold
Author :
Kovalenko, Olga ; Shalagatskyi, V. ; Pezeril, Thomas ; Gusev, Vitalyi ; Temnov, V.V. ; Makarov, Denis ; Luyang Han ; Schmidt, Oliver G.
Author_Institution :
Inst. des Mol. et Mater. du Mans, Univ. du Maine, Le Mans, France
Abstract :
Ballistic hot electrons in fs-laser-excited gold are used to generate ultrashort (2 ps duration) acoustic pulses in cobalt. The exponential dependence of the acoustic amplitude on gold thickness provides the electron mean-free-path of 120 nm.
Keywords :
acoustic pulses; acousto-optical effects; cobalt; electron mean free path; gold; optical pulse generation; photoexcitation; Au; Co; ballistic hot electrons; cobalt; electron mean-free-path; femtoseconde-laser-excited gold; ultrashort acoustic pulse generation; Acoustic pulses; Cobalt; Gold; Optical pumping; Ultrafast electronics; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
