Title :
Nonlinear ultrasonics in gold-cobalt bilayer structures probed with femtosecond surface plasmons
Author :
Temnov, V.V. ; Klieber, C. ; Nelson, K.A. ; Thomay, Tim ; Knittel, V. ; Leitenstorfer, Alfred ; Makarov, Denis ; Albrecht, Martin ; Bratschitsch, Rudolf
Author_Institution :
Inst. des Mol. et Mater. du Mans, Univ. du Maine, Le Mans, France
Abstract :
Giant (1%) picosecond strain pulses are generated in a fs-laser-irradiated cobalt transducer sandwiched between a gold layer and sapphire substrate. Ultrafast plasmonic interferometry reveals nonlinear acoustic propagation effects in the (111) gold film.
Keywords :
cobalt; gold; light interferometry; nonlinear acoustics; optical pulse generation; plasmonics; surface plasmons; ultrasonic transducers; Al2O3; Au-Co; femtosecond surface plasmons; fs-laser-irradiated cobalt transducer; giant picosecond strain pulses; gold film; gold-cobalt bilayer structures; nonlinear acoustic propagation; nonlinear ultrasonics; plasmonic interferometry; sapphire substrate; Acoustic pulses; Cobalt; Gold; Optical interferometry; Optical surface waves; Plasmons;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
