High-overtone bulk-acoustic resonator gravimetric sensitivity: Towards wideband acoustic spectroscopy.
In: Journal of Applied Physics, Jg. 118 (2015-09-21), Heft 11, S. 114505-1- (8S.)
Online
academicJournal
Zugriff:
In the context of direct detection sensors with compact dimensions, we investigate the gravimetric sensitivity of high-overtone bulk acoustic resonators, through modeling of their acoustic characteristics and experiment. The high frequency characterizing such devices is expected to induce a significant effect when the acoustic field boundary conditions are modified by a thin adlayer. Furthermore, the multimode spectral characteristics are considered for wideband acoustic spectroscopy of the adlayer, once the gravimetric sensitivity dependence of the various overtones is established. Finally, means of improving the gravimetric sensitivity by confining the acoustic field in a low acoustic-impedance layer is theoretically established. [ABSTRACT FROM AUTHOR]
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High-overtone bulk-acoustic resonator gravimetric sensitivity: Towards wideband acoustic spectroscopy.
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Autor/in / Beteiligte Person: | Rabus, D. ; Friedt, J. M. ; Ballandras, S. ; Baron, T. ; Lebrasseur, É. ; Carry, E. |
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Zeitschrift: | Journal of Applied Physics, Jg. 118 (2015-09-21), Heft 11, S. 114505-1- (8S.) |
Veröffentlichung: | 2015 |
Medientyp: | academicJournal |
ISSN: | 0021-8979 (print) |
DOI: | 10.1063/1.4930032 |
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