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White‐beam topography of Rayleigh waves: a numerical study
Author(s) -
Mocella V.,
Epelboin Y.
Publication year - 1999
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889898007997
Subject(s) - optics , rayleigh wave , beam (structure) , contrast (vision) , amplitude , synchrotron , piezoelectricity , materials science , transducer , rayleigh scattering , crystal (programming language) , diffraction , vibration , rayleigh length , acoustics , physics , surface wave , laser beams , computer science , programming language , laser
This paper analyses the contrast of white‐beam stroboscopic synchrotron topographs of Rayleigh waves induced by a piezoelectric transducer in an α‐quartz crystal. The aim of the present investigation is to study the influence of the crystal thickness and of the vibration amplitude on the image contrast. A periodic optimal thickness is found that maximizes the film contrast.