Wednesday, March 13, 2013

1303.2947 (Damiano Nardi et al.)

Design of a surface acoustic wave mass sensor in the 100 GHz range    [PDF]

Damiano Nardi, Elisa Zagato, Gabriele Ferrini, Claudio Giannetti, Francesco Banfi
A design for photoacoustic mass sensors operating above 100 GHz is proposed. The design is based on impulsive optical excitation of a pseudosurface acoustic wave in a surface phononic crystal with nanometric periodic grating, and on time-resolved extreme ultraviolet detection of the pseudosurface acoustic wave frequency shift upon mass loading the device. The present design opens the path to sensors operating in a frequency range currently unaccessible to electro-acoustical transducers, providing enhanced sensitivity, miniaturization and incorporating time-resolving capability while forgoing the piezoelectric substrate requirement.
View original: http://arxiv.org/abs/1303.2947

No comments:

Post a Comment