Abstract
Two optical methods for the determination of the Li/Nb ratio in lithium niobate (LiNbO3) are discussed. Data for the optical birefringence method are presented, they cover the entire composition range in which LiNbO3 can be fabricated and a wide spectral region. The line-widths of lattice modes have been measured by means of Raman scattering as a function of the Li/Nb ratio for single crystals with polished and rough surfaces.
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Schlarb, U., Klauer, S., Wesselmann, M. et al. Determination of the Li/Nb ratio in lithium niobate by means of birefringence and Raman measurements. Appl. Phys. A 56, 311–315 (1993). https://doi.org/10.1007/BF00324348
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DOI: https://doi.org/10.1007/BF00324348