Syntheses of LiTaO3/LiNbO3 Super-Lattice Thin Films and Their Optical Properties

被引：3
|
作者：
Tsukahara, Go [1 ]
Uesu, Yoshiaki [1 ]
机构：
[1] Waseda Univ, Dept Phys, Shinjuku Ku, Tokyo 1698555, Japan
来源：
FERROELECTRICS | 2010年 / 406卷
关键词：
Super-lattice film; LiNbO3; LiTaO3; pulsed laser deposition; complex refractive index; ellipsometry; PULSED-LASER DEPOSITION;
D O I：
10.1080/00150193.2010.484326
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
LiTaO3(LT)/LiNbO3(LN) super-lattice thin films with different LT/LN ratios are fabricated on (0001) sapphire (-Al2O3) substrates using the pulsed laser deposition method. Well-defined X-ray super-lattice reflections are observed, and the SL period are calculated from these super-lattice positions, which coincide well with design ones estimated from the deposition velocities of LN and LT. X-ray -2 and in-plane phi-scans confirm the epitaxial growth of the films. Photon energy dependence of complex refractive indices n* of these super-lattice thin films are measured by a spectroscopic ellipsometer. The blue shift of n* with increase of LT ratio is observed.
引用
收藏
页码：31 / 34
页数：4
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