HIGH EFFICIENCY POLARIZATION REVERSAL OF MAGNETOELASTIC WAVES IN YIG BY OPTICAL‐CONTACT BONDING OF YAG DISKS
HIGH EFFICIENCY POLARIZATION REVERSAL OF MAGNETOELASTIC WAVES IN YIG BY OPTICAL‐CONTACT BONDING OF YAG DISKS
复制标题
通过 YAG 盘的光接触粘合实现 YIG 中磁弹性波的高效偏振反转
DOI：
10.1063/1.1754645
复制
发表时间：
1966
影响因子：
4
通讯作者：
Henry I. Smith
中科院分区：
文献类型：
--
作者：
H. V. D. Vaart;Henry I. Smith
通过将YAG盘光学接触连接到YIG棒的端面，在另一端检测到磁弹性脉冲，这是因为圆极化剪切波的偏振反转到磁性不活跃的反向旋转的剪切波。圆极化感的反转频率由(110)切割的YAG中横波的速度和圆盘的厚度决定。在传输中获得回波的效率很大程度上取决于YAG-YIG-YIG键的质量。研究发现，在室温下，光接触键传递了L波段96%的入射弹性功率。
By optical‐contact bonding of YAG disks to the end surfaces of a YIG rod, magnetoelastic pulses, generated at one end, are detected at the opposite end because of polarization reversal of the circularly polarized shear waves to the magnetically inactive, counter‐rotating shear waves. The frequencies at which the sense of circular polarization is reversed are determined by the velocities of the shear waves in the (110) cut YAG and by the thickness of the disks. The efficiency of the YAG‐YIG‐YAG assembly for obtaining echoes in transmission depends strongly on the quality of the YAG‐to‐YIG bonds. It was found that the optical‐contact bonds transmitted 96% of the incident elastic power at L band at room temperature.