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Analysis of SAW Temperature Properties in KTiOPO(4) Single Crystal

The surface acoustic wave (SAW) properties of potassium titanyl phosphate (KTiOPO(4), KTP) single crystal were evaluated by numerical methods. The phase velocity, electromechanical coupling coefficient, power flow deflection angle, and temperature coefficient of delay (TCD) were determined for diffe...

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Detalles Bibliográficos
Autores principales: Taziev, Rinat, Atuchin, Victor
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9821228/
https://www.ncbi.nlm.nih.gov/pubmed/36614406
http://dx.doi.org/10.3390/ma16010069
Descripción
Sumario:The surface acoustic wave (SAW) properties of potassium titanyl phosphate (KTiOPO(4), KTP) single crystal were evaluated by numerical methods. The phase velocity, electromechanical coupling coefficient, power flow deflection angle, and temperature coefficient of delay (TCD) were determined for different crystal cuts of KTP. It was shown that SAW has the electromechanical coupling coefficient of 0.59% and the TCD of 62 ppm/°C on the Z-cut and wave propagation direction along the crystal X + 70°-axis. For the Z-cut and wave propagation direction along the X-axis, the pseudo-surface wave (PSAW) is characterized by the coupling coefficient of 0.46% and the TCD value of 57 ppm/°C. The Bleustein–Gulyaev (BG) wave has the TCD value of 35 ppm/°C and 41 ppm/°C on the Y- and X-cuts of KTP, respectively.