Measurement of "Shear" photoelastic constants in lithium niobate

A technique is presented for measuring the "shear" photoelastic constants of lithium niobate by Bragg scattering from acoustic shear waves at moderate frequencies and at small Bragg angles. Values of p 66 =0.048, p 14 =0.056, p 44 =0.062, and p 41 =0.050 are obtained, the first two agreein...

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Bibliographic Details
Published inProceedings of the IEEE Vol. 57; no. 7; pp. 1332 - 1333
Main Authors Maloney, W.T., Gravel, R.L.
Format Journal Article
LanguageEnglish
Published IEEE 01.01.1969
Subjects
Acoustic beams
Acoustic measurements
Acoustic scattering
Crystallization
Frequency measurement
Light scattering
Lithium niobate
Optical propagation
Photoelasticity
Silicon compounds
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Summary:A technique is presented for measuring the "shear" photoelastic constants of lithium niobate by Bragg scattering from acoustic shear waves at moderate frequencies and at small Bragg angles. Values of p 66 =0.048, p 14 =0.056, p 44 =0.062, and p 41 =0.050 are obtained, the first two agreeing well with the results of other workers.
ISSN:0018-9219
1558-2256
DOI:10.1109/PROC.1969.7260