Lamb wave transducers built on periodically poled Z-cut LiNbO3 wafers | Zendy

E. Courjon | Zendy; Nadège Courjal | Zendy; W. Daniau | Zendy; G. Lengaigne | Zendy; Ludovic GauthierManuel | Zendy; Sylvain Ballandras | Zendy; J. Hauden | Zendy

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Lamb wave transducers built on periodically poled Z-cut LiNbO3 wafers

Author(s) -

E. Courjon,

Nadège Courjal,

W. Daniau,

G. Lengaigne,

Ludovic GauthierManuel,

Sylvain Ballandras,

J. Hauden

Publication year - 2007

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.2802566

Subject(s) - lapping , transducer , piezoelectricity , fabrication , wafer , materials science , polishing , ferroelectricity , acoustics , lamb waves , optics , lithium niobate , optoelectronics , surface wave , physics , composite material , medicine , alternative medicine , pathology , dielectric

In this paper, the development of piezoelectric transducers based on periodically poled ferroelectric domains is investigated. Optical quality Z-cut LiNbO3 wafers have been used for the fabrication of test devices operating in the range of 10–100 MHz. The fabrication process is detailed and the characterization results are reported. A very good agreement between theoretical predictions achieved by periodic finite element analysis and experiments is observed, allowing for a precise identification of the excited modes. Elliptically polarized modes as well as quasipure longitudinal waves are pointed out. The robustness of the devices to lapping and polishing operations has also been tested. The possible utilizations of such transducers are discussed to conclude the paper. ©2007 American Institute of Physic

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