TY - JOUR
T1 - Impulsively Excited Surface Phononic Crystals: A Route Toward Novel Sensing Schemes
AU - Nardi, Damiano
AU - Travagliati, Marco
AU - Murnane, Margaret M.
AU - Kapteyn, Henry C.
AU - Ferrini, Gabriele
AU - Giannetti, Claudio
AU - Banfi, Francesco
PY - 2015
Y1 - 2015
N2 - The application of all-optical time resolved techniques to nanostructured surface phononic crystals (SPCs) enables the generation and detection of hypersonic frequency surface acoustic waves up to 50 GHz, with great potential for innovations in nanometrology and sensing applications. In this paper, we review the advances in this field in both experiments and theory, focusing on the progress in nondestructive nanometrology of ultrathin films, on the potential for a dramatic increase in the sensitivity of mass sensors due to enhanced acoustic wave surface confinement, and on the evolution of this approach to include polymer-coated SPCs for soft material and gas sensing applications. A survey of the enabling innovative optical technologies involved is presented.
AB - The application of all-optical time resolved techniques to nanostructured surface phononic crystals (SPCs) enables the generation and detection of hypersonic frequency surface acoustic waves up to 50 GHz, with great potential for innovations in nanometrology and sensing applications. In this paper, we review the advances in this field in both experiments and theory, focusing on the progress in nondestructive nanometrology of ultrathin films, on the potential for a dramatic increase in the sensitivity of mass sensors due to enhanced acoustic wave surface confinement, and on the evolution of this approach to include polymer-coated SPCs for soft material and gas sensing applications. A survey of the enabling innovative optical technologies involved is presented.
KW - phononic crystal
KW - surface acoustic waves
KW - phononic crystal
KW - surface acoustic waves
UR - https://publicatt.unicatt.it/handle/10807/75936
UR - https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84937823620&origin=inward
UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84937823620&origin=inward
U2 - 10.1109/JSEN.2015.2436881
DO - 10.1109/JSEN.2015.2436881
M3 - Article
SN - 1530-437X
VL - 15
SP - 5142
EP - 5150
JO - IEEE Sensors Journal
JF - IEEE Sensors Journal
IS - 9
ER -