Title :
Impulsively excited Surface Phononic Crystals: A route towards novel sensing schemes
Author :
Nardi, Damiano ; Murnane, Margaret ; Kapteyn, Henry ; Travagliati, Marco ; Ferrini, Gabriele ; Giannetti, Claudio ; Banfi, Francesco
Author_Institution :
JILA, Univ. of Colorado, Boulder, CO, USA
Abstract :
The application of all-optical time resolved techniques to nanostructured Surface Phononic Crystals enables the generation and detection of hypersonic frequency surface acoustic waves up to 50 GHz, with great potential for breakthroughs in nanometrology and sensing applications. Here we review the advances in this field both in the theory and experiments, focusing on the progress in non-destructive ultrathin films nanometrology and the promise of dramatically increasing mass sensors sensitivity due to enhanced acoustic wave surface confinement.
Keywords :
nanosensors; phononic crystals; surface acoustic wave transducers; all-optical time resolved techniques; enhanced acoustic wave surface confinement; hypersonic frequency surface acoustic wave detection; hypersonic frequency surface acoustic wave generation; impulsively excited surface phononic crystals; mass sensors sensitivity; nanostructured surface phononic crystals; nondestructive ultrathin films nanometrology; sensing applications; Gratings; Optical surface waves; Sensors; Substrates; Surface acoustic waves; Ultraviolet sources; acoustic sensing; metamaterials; nanomechanics; phononic crystals; surface acoustic waves; ultrafast optics;
Conference_Titel :
SENSORS, 2014 IEEE
Conference_Location :
Valencia
DOI :
10.1109/ICSENS.2014.6985145
