TY - JOUR
T1 - Magnesium-Ion Indiffusion to Lithium Niobatc Single-Crystal Fiber with MgFa as Diffusion Source
AU - Que, Wenxiu
AU - Zhou, Yan
AU - Lam, Yeeloy
AU - Chan, Yuenchuen
AU - Kam, Chanhin
AU - Zhang, Liangying
AU - Yao, Xi
PY - 1999
Y1 - 1999
N2 - A study of the Mg-ion indiffusion to lithium niobatc (LiNbO3) single-crystal fiber was carried out using MgF2 as the diffusion source. A core-cladding waveguide structure was obtained for a c-axis LiNbO3 single-crystal fiber with a diameter of 200 μm, and the optical characteristics of the cladded crystal fiber were given. By means of electron probe microanalysis, the activation energy for Mg-ion indiffusion was estimated to be 104kJ/mol. It was also found by X-ray diffraction analysis that the Mg-diffused layer has serious lattice distortion and the LiNb3O8 compound appears beyond a certain extent of Mg-ion indiffusion. The appearance of the LiNb3O8 compound is related to Li-ion outdiffusion from the bulk of LiNbO3 and the large amount of F ions from MgF2 due to Mg-ion indiffusion to LiNbO3. It was indicated by scanning electron microscopy that F ions appear in the form of LiF particles and these particles volatilize from the surface of the Mg-diffused layer with increased diffusion.
AB - A study of the Mg-ion indiffusion to lithium niobatc (LiNbO3) single-crystal fiber was carried out using MgF2 as the diffusion source. A core-cladding waveguide structure was obtained for a c-axis LiNbO3 single-crystal fiber with a diameter of 200 μm, and the optical characteristics of the cladded crystal fiber were given. By means of electron probe microanalysis, the activation energy for Mg-ion indiffusion was estimated to be 104kJ/mol. It was also found by X-ray diffraction analysis that the Mg-diffused layer has serious lattice distortion and the LiNb3O8 compound appears beyond a certain extent of Mg-ion indiffusion. The appearance of the LiNb3O8 compound is related to Li-ion outdiffusion from the bulk of LiNbO3 and the large amount of F ions from MgF2 due to Mg-ion indiffusion to LiNbO3. It was indicated by scanning electron microscopy that F ions appear in the form of LiF particles and these particles volatilize from the surface of the Mg-diffused layer with increased diffusion.
KW - Electron probe microanalysis
KW - Linbo single-crystal fiber
KW - Magnesium-ion indiffusion
KW - Optical characteristics
KW - Scanning electron microscopy
KW - X-ray diffraction analysis
UR - https://www.scopus.com/pages/publications/0033321787
U2 - 10.1143/jjap.38.5137
DO - 10.1143/jjap.38.5137
M3 - 文章
AN - SCOPUS:0033321787
SN - 0021-4922
VL - 38
SP - 5137
EP - 5142
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - 9 A
ER -