Conoscopic interferometry of wafers for surface-acoustic wave devices

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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en

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4

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Journal of Applied Physics, Volume 82, issue 8, pp. 4039-4042

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We show that in interpreting the conoscopic interference fringes, one should exercise care in employing approximate expressions which fail for certain crystal cuts. In this paper, we study 64°- and 128°-rotated Y-cut and Z-cut LiNbO3 wafers. We show that the error made in using the approximate formulae for the samples is more than 25% and that one has to use exact formulae in order to attain quantitative agreement with the experimental data.

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Äyräs, P, Friberg, A, Kaivola, M & Salomaa, M 1997, 'Conoscopic interferometry of wafers for surface-acoustic wave devices', Journal of Applied Physics, vol. 82, no. 8, pp. 4039-4042. https://doi.org/10.1063/1.365755