Lithium tantalate (LiTaO 3 ) thin films were deposited on sapphire-C substrates by rf magnetron sputtering at various substrate temperatures. The crystallinity was examined by X-ray diffraction and reflection high-energy electron diffraction (RHEED), and the refractive indices were determined by the prism coupling m-lines technique and the interferometric transmission spectrum. Single-crystal (0001)LiTaO 3 films were heteroepitaxially grown on sapphire-C substrates above 600°C, and the dispersion relation of the refractive index agreed well with that of the bulk single crystal.
No takes yet. Share an insight, caveat, or question.
Yasuyoshi Saito Shiosaki (1991) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: