Growth and Optical Properties of LiNbO₃: MgO Single Crystals

Abstract

The technological procedure of the manufacturing of the LiNbO3' single crystals doped with 5 mol.% MgO is described in this paper. The results of the investigation of the crystal optical properties, ESR spectra and optical homogeneity are presented. The refractive index dispersion in 300-700 nm region and their temperature dependencies in 20-500 "C range are measured.The dispersion curve is approximated by the two oscillator Sellmeier formula. The data on the LiNbO3 : MgO crystal optical resistance are presented.

Colour centres in :Fe and :Cu crystals irradiated by 12C ions

“…The investigated crystals were grown by the Czochralski method in condition described in Pracka et al (1999), Sugak et al (1997) and Zhydachevski et al (2001). Polished plates of the crystals with thickness of 1-2 mm were used for optical measurements.…”

In situ Investigation of OH-Absorption in LiNbO3and LiNbO3:MgO Crystals during Reducing/Oxidizing Annealing

“…The growth technology is described in Refs. [16,17]. Magnesium oxide was added to the melt of LiNbO 3 to prepare a doped crystal nominally containing 5.63 mol.% of Mg.…”

“…Magnesium oxide was added to the melt of LiNbO 3 to prepare a doped crystal nominally containing 5.63 mol.% of Mg. Such concentration of Mg 2+ ions in LiNbO 3 exceeds the threshold concentration [17]. The samples were polished and prepared as Y -cut and Z-cut.…”

Quadratic nonlinear optical parameters of 7% MgO-doped LiNbO3 crystal

“…Magnesium oxide was added to the melt of LiNbO 3 to prepare a doped crystal nominally containing 7 mol.% of MgO. The growth technology is described in details elsewhere [12][13][14]. The x-cut plates of LiNbO 3 and LiNbO 3 :MgO (7 mol.%) were prepared with the thickness of 1 mm.…”