A8 - SAW Interaction with Water Molecules in Air on Free 128deg Y-X LithiumNiobate Substrate
- Event
- 20th Jubilee Winter Workshop
on Acoustoelectronics
2024-02-24 - 2024-02-27
Szczyrk, Beskidy Mountains (Poland) - Chapter
- Acoustoelectronics
- Author(s)
- W. Jakubik, D. Dragon, J. Wrotniak - Silesian University of Technology, Gliwice
(Poland), M. Benetti, D. Cannata - CNR, Rome (Italy), V. Bhethanabotla - University
of South Florida, Tampa (USA) - Pages
- 20 - 21
- DOI
- 10.5162/20WWonAE/A8
- ISBN
- 978-3-910600-05-8
- Price
- free
Abstract
The surface acoustic wave propagating on the free surface of a piezoelectric substrate (without using a sorptive membrane) can interact with water molecules in air especially at their higher concentrations. This phenomenon may be related to interaction of the electrical dipole moment of the water molecule and the electrical field associated with the propagating surface acoustic wave. Experimental results presented in this contribution show that for the 1280 Y-X lithium niobate substrate, the insertion loss is greater for the first harmonic than for the third ones, whereas for the phase shifts, the trend is opposite.