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Structures phononiques à ondes de Love pour la biodétection

Abstract : The development of diodetection systems is extremely important for a large number of fields and the need to improve the sensitivity and precision of measurements is becoming an important issue for some advanced applications. Surface acoustic waves (SAW) are widely used for sensor applications, particularly for biodetection, however the theoretical limits of their sensitivity will soon be reached. At the same time, new methods of manipulating acoustic waves through periodic arrangements, called phononic crystals, have been developed. The objective is to show a proof of concept of the interaction of phononic structures coupled to a SAW Love waves device as well as their sensitivity to mass deposition in order to show their potential for biodetection applications. The work consisted of a numerical modeling step in order to design and optimize a reference phononic structure, then in an experimental phase with the development of cleanroom manufacturing processes and tests to characterize the devices and estimate a first sensitivity for this type of system.
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https://hal.univ-lorraine.fr/tel-03133012
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Submitted on : Friday, February 5, 2021 - 3:39:41 PM
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DDOC_T_2020_0163_BONHOMME.pdf
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  • HAL Id : tel-03133012, version 1

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Jérémy Bonhomme. Structures phononiques à ondes de Love pour la biodétection. Instrumentations et Détecteurs [physics.ins-det]. Université de Lorraine; Université de Sherbrooke (Québec, Canada), 2020. Français. ⟨NNT : 2020LORR0163⟩. ⟨tel-03133012⟩

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