Single domain structure and two-color holographic recording in LiNbO3:Cu:Ce crystals grown by the vertical Bridgman method

One-Color Nonvolatile Holographic Recording in Ce:Tb:LiNbO3

“…The dopant concentrations in the congruent melt are 0.085 and 0.02 wt % for Ce 2 O 3 and Tb 4 O 7 , respectively. Like Ce:Cu:LiNbO 3 crystal grown with VB method in our lab, 10) the etching experiment with HF : HNO 3 ¼ 1 : 2 (in volume) at 100 C for 15 min revealed that this crystal Ce:Tb:LiNbO 3 was of single domain structure. It was directly used for holographic recording without any treatment.…”

Study on Ag doping in congruent lithium niobate crystal

“…The composition atomic ratio of Li/Nb was 48.6/51.4 and the concentration of AgNO 3 was 500 ppm in the starting material. The as-grown crystal was red-brown and behaved as a single ferroelectric domain structure [11]. Samples for optical measurements were prepared by cutting the as-grown crystal into small rectangular pieces perpendicular to x-and z-axis, followed by optical polishing of both opposite surfaces.…”

Two-color nonvolatile holographic recording in Bridgman-grown Ru:LiNbO3 crystals

“…1, corresponding to Z ¼ 3.5, 36.6 and 51.1 mm, respectively, and were polished to a thickness of 1.87 mm. The Bridgman-grown crystal samples have a single-domain structure [16]. The absorption spectra of these Z-cut samples are shown in Fig.…”