Implementation of a tunable hybrid system with coupled high Q-factor resonators based on mode localization for sensing purposes
| Autor: | Claude Humbert, Gwenhaël Goavec-Merou, Vincent Walter, Najib Kacem, Therese LEBLOIS |
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| Přispěvatelé: | Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
[SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph]
[SPI.OTHER]Engineering Sciences [physics]/Other [PHYS.MECA]Physics [physics]/Mechanics [physics] [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics [SPI.MAT]Engineering Sciences [physics]/Materials |
| Zdroj: | Smart Materials and Structures Smart Materials and Structures, IOP Publishing, 2020, 29 (2), pp.02LT01 (6) HAL |
| ISSN: | 0964-1726 1361-665X |
| Popis: | International audience; In this paper, we present a fully tunable system able to generate mode localization between a 170 000 Q-factor quartz crystal microbalance at 1 MHz and a digital device (field programmable gate array) simulating in real time the presence of an identical and weakly-coupled second resonator. Indeed, this method allows to precisely select each parameter value and thus to reach the optimal configuration with the maximum sensitivity to perturbations. In addition, this design gives a perfect adaptability to the geometry of the piezoelectric resonator, that allows to work with much higher frequencies and Q-factors than conventional cantilevers or tuning-forks usually selected for the design of mode-localized sensors. The experimental sensitivities reached in this work are at least two orders of magnitude higher than the ones found in the literature, which is promising for the design of a new generation of ultrasensitive sensors based on Anderson localization. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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