摘要
报道了铟铋钙钒铁石榴石 (In BiCaVIG)晶体在高功率微波场中的新颖磁光记录特性。In BiCaVIG晶体受峰值功率约 10 0MW ,频率约 10GHz ,脉宽约 5 0ns的高功率微波脉冲作用后 ,晶体的磁旋光角发生了变化。其变化的大小与晶体通光方向上的磁场峰值大小有关 ;旋光角变化的方向与晶体的初始磁旋光状态有关。这种记录着高功率微波峰值磁场的旋光状态的变化可以保持几天或更长时间 ,能够用静磁场消除。
This paper reveals a novel magneto-optic recording characteristic of Indium Bismuth Calcium Vitriol Iron Garnet (In-BiCaVIG) crystals in high power microwave (HPM) field. The initial state of magneto-optic rotation in the In-BiCaVIG crystal changes under about 100 MW HPM pulse, 2～10 GHz in frequency and about 50 ns in width. The changing values of magneto-optic rotation are related to the peak intensities of magnetic field in the direction of optical path. The changed directions of magneto-optic rotation are related to the initial states of crystals. The changing magneto-optic rotations related to the HPM magnetic field can maintain in the crystal for several days or more unless being erased by a magnetostatic field.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2002年第1期87-90,共4页
Chinese Journal of Lasers
基金
国家 8 6 3激光技术青年基金
