大学物理 ›› 2006, Vol. 25 ›› Issue (12): 49-49.

• 著者文摘 • 上一篇    下一篇

没有热效应的新型磁光测试装置

王益军[1,2] 李小俊[2]   

  1. [1]咸阳师范学院物理系,陕西咸阳712000 [2]西北大学光子学与光子技术研究所,陕西西安710069
  • 出版日期:2006-12-25 发布日期:2006-12-20

The magneto-optical modulator without temperature effect

  • Online:2006-12-25 Published:2006-12-20

摘要: 介绍了一种新型的磁光测试装置.根据法拉第磁致旋光效应,使用永磁片代替以往通电螺线圈产生磁场,不会产生热量,可以消除热效应对磁光介质费尔德常量的影响.通过实验测出这种磁场的分布特点,给出该装置的调节方法,并测出292K温度下LaK2,LaK3,LaK3,Tb20,Tb25,ZF6玻璃的费尔德常量本实验为地磁成像技术提供了实验数据,并推动了该研究的进展

关键词: 磁致旋光, 费尔德常量, 热效应, 磁光测试仪, 地磁场成像

Abstract: A novel magneto-optical modulator is introduced, which used permanent magnet slice, so the tem- perature effect is avoided for the Verdet constant of magneto-optical material. The working principle of the device is described in detail, the ranging of the ZF6, Tb20, Tb25 pushed forward are measured precisely magnetic field is also provided, and the Verdet constants of Lak2, Lak3, in 292 K. So that the study of geomagnetic field imaging technology is and is offered date by this experiment.

Key words: magneto-optic rotation, Verdet constant, temperature effect magneto-optical modulator geomagnetic field imaging

中图分类号: 

  • O436.4