Crystal growth and characterization of Nd, Mg co-doped near-stoichiometric LiNbO3

Crystal growth, VTE treatment, and characterizations of Nd-doped LiTaO3

“…Nevertheless, the k eff being greater than unity is not common. In the earlier report by Nakamura et al [22], 0.12 mol% was reported in Nd, Mg:SLN. However, concentration in the LT crystal grown from 0.3 mol% Nd 3+ doped melt was also measured to be 5.6 Â 10 19 ions cm À 3 [23] in the crystal for which k eff was calculated to be 0.9.…”

THz Pyro-Optical Detector Based on LiNbO3 Whispering Gallery Mode Microdisc Resonator

“…Here, we examine a micro-resonator disc of LiNbO 3 having a radius r = 2 mm and height h = 1 mm, placed on an aluminum thermostat. LiNbO 3 has a density of ρ = 4.648 g/cm 3 [ 34 ], yielding to a mass m of about 0.058 g. Its thermodynamic properties are the specific heat C = 0.63 J/(g·K) and the thermal conductivity k = 3.92 W/(m·K) [ 35 ]. If THz radiation is directed onto the top surface of the microdisc, it will first be largely absorbed by the crystal, and then reflected by the Al thermostat and, finally, further absorbed by the crystal.…”

Growth of MgO doped near stoichiometric LiNbO3 single crystals by a hanging crucible Czochralski method using a ship lockage type powder feeding system assisted by numerical simulation

“…The thermal conductivity components at different temperatures were calculated according to the relevant equation, and are shown in CrystEngComm Paper of 5.97 W (m K) −1 for SLN, 5.62 W (m K) −1 for MgOSLN, 40 3.75 W (m K) −1 for CLN and 4.63 W (m K) −1 for MgOCLN. 32 These results are likely to be caused by a very small amount of intrinsic defects in the crystal, which could also lead to more phonon scattering.…”