AN EXPERIMENTAL STUDY OF THE INDIRECT PHOTOELASTIC EFFECT IN LITHIUM-NIOBATE
With a helium-neon laser operating at a wavelength of 632.8 nm, we have conducted a Brillouin spectroscopic study of the indirect photoelastic effect in lithium niobate. Scattered light was analyzed by a Fabry-Perot interferometer and signals were detected and processed by a photomultiplier and photon counting electronics. Photoelastic matrix elements were measured in an absolute manner, using toluene as a reference scatterer. From intensity data, three of the four electrooptic tensor components were measured, and all of the symmetric photoelastic tensor components were determined. A right angle scattering geometry was employed for all measurements. Phonons observed were (100), (001), (101), (110), (011), and (011).
SEIDLER, A. LEE, "AN EXPERIMENTAL STUDY OF THE INDIRECT PHOTOELASTIC EFFECT IN LITHIUM-NIOBATE" (1980). ETD Collection for Fordham University. AAI8020084.