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SAW Based Sandwich Phononic Crystal Sensor

  • Sensing is nowadays an accepted application of phononic crystals with chemical and biosensors for liquid analytes being the perhaps most promising ones. A liquid-filled defect is introduced that turns into a resonant cavity. Similar to the well-known resonant sensors sensitivity can be increased with higher operating frequencies. We introduce a Sandwiched Phononic Crystal (SPC), which applies a resonant cavity located between two stacked layers on top of a SAW device. Key challenges are couplingSensing is nowadays an accepted application of phononic crystals with chemical and biosensors for liquid analytes being the perhaps most promising ones. A liquid-filled defect is introduced that turns into a resonant cavity. Similar to the well-known resonant sensors sensitivity can be increased with higher operating frequencies. We introduce a Sandwiched Phononic Crystal (SPC), which applies a resonant cavity located between two stacked layers on top of a SAW device. Key challenges are coupling of surface acoustic wave into the liquid cavities and avoiding scattering of the guided waves into the bulk of the sensor chip.show moreshow less

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Metadaten
Author:Ralf Lucklum, Mikhail Zubtsov, Aleksandr Oseev, Marc-Peter Schmidt, Sören Hirsch
URL:https://linkinghub.elsevier.com/retrieve/pii/S1877705816335640
DOI:https://doi.org/10.1016/j.proeng.2016.11.251
ISSN:18777058
Parent Title (English):Procedia Engineering
Publisher:Elsevier
Document Type:Article
Language:English
Year of Publishing:2016
Date of Publication (online):2024/02/14
Publishing Institution:Technische Hochschule Brandenburg
Release Date:2024/02/19
Issue:168
Page Number:4
First Page:700
Last Page:703
Institutes:Fachbereich Technik
University Bibliography:Hochschulbibliografie
Licence (German):Creative Commons - CC BY - Namensnennung 4.0
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