Growth and optical damage resistance of Sc, Er Co-doped LiNbO3 crystals

Abstract

A series of Sc:Er:LiNbO 3 crystals have been grown by Czochralski method. Their ultraviolet-visible (UVVis) absorption spectra was measured and discussed to investigate their defect structure. The optical damage resistance of Sc:Er:LiNbO 3 crystals was characterized by the transmitted beam pattern distortion method. It increases remarkably when the concentration of Sc 2 O 3 exceeds a threshold concentration. The optical damage resistance of Sc (3.0mol %):Er:LiNbO 3 is much higher than that of the Er:LiNbO 3 . The intrinsic and extrinsic defects were discussed to explain the enhance of the optical damage resistance in the Sc:Er:LiNbO 3 crystals.

Growth and nonvolatile holographic storage properties of Hf:Ce:Cu:LiNbO3 crystals

“…In LN crystal, an increase of s ph is related to the removal of electron traps, and is inversely proportional to the Nb Li concentration [12]. …”

In doping effect on optical properties in Zn:In:Fe:LiNbO3 crystals

“…The infrared transmittance spectra were measured by an Avatar-360 FT-IR Spectrometer at room temperature in the range of 3400 cm -1 to 3600 cm -1 . The UV-Vis absorption spectra of Zn: In: Fe: LiNbO 3 crystals with a wavelength range of 350-700 nm were obtained by a CARYIE-model UV-Vis spectrophotometer at room temperature [10][11][12][13]. The transmitted beam pattern distortion method was employed to measure the optical damage resistance of Zn: In: Fe: LiNbO 3 crystals.…”

Growth and photorefractive properties of Mg:Ce:Cu:LiNbO3 crystals grown by Czochralski method

“…In LiNbO 3 , an increase of σ ph is related to a decrease of the Nb Li concentration owing to its replacement by the impurities [11]. In Mg:Ce:Cu:LN crystals, Mg 2+ substituted the Nb Li 4+ .…”