[Invited] Phononic crystal for dynamic viscosity determination

Laurent Carpentier (1, 2) , Abdellatif Gueddida (2) , Mansour Zaremanesh (3) , Hamed Gharibi (3) , Ali Bahrami (4) , Ahmed Mehaney (5) , Ralf Lucklum (6, 7) , Bahram Djafari-Rouhani (2, 8) , Yan Pennec (2, 8)

1 LDSMM - Laboratoire de dynamique et structure des matériaux moléculaires
2 IEMN - Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520
3 SUT - Sahand University of Technology (SUT) Tabriz, Iran
4 University of Isfahan
5 Beni-Suef University
6 IMOS - Institute of Micro and Sensor Systems
7 OVGU - Otto-von-Guericke-Universität Magdeburg = Otto-von-Guericke University [Magdeburg]
8 PHYSIQUE - IEMN - Physique - IEMN

We propose a two-dimensional triangular lattice solid/fluid phononic crystals (PnC) for the determination of the acoustic properties and in particular dynamic viscosity of a fluid. We show that this device is very sensitive to the acoustic parameters of the liquid, such as density or sound velocity, and could consequently be used as a temperature sensor. This temperature sensitivity is investigated through the existence of sharp waveguide acoustic modes localized in the band gap of the PnC at well-defined frequencies. We show that this device can also be used for dynamic viscosity measurements of liquid, based on the attenuation of the guided modes.

Mots clés: phononic crystal sensor; dynamic viscosity; numerical simulations

Domaines: Sciences de l'ingénieur [physics]

Laurent Carpentier, Abdellatif Gueddida, Mansour Zaremanesh, Hamed Gharibi, Ali Bahrami, et al.. [Invited] Phononic crystal for dynamic viscosity determination: [Invited]. Photonic and Phononic Properties of Engineered Nanostructures XII, SPIE Photonics West OPTO Conference, Jan 2022, San Francisco, United States. pp.45, ⟨10.1117/12.2615965⟩. ⟨hal-03692873⟩