IMPROVED SENSITIVITY IN NOVEL SCHEME OF MAGNETOOPTICAL FIELD SENSOR

被引：8

作者：

NUMATA, T ^{[1
]}

YAO, M ^{[1
]}

INOKUCHI, S ^{[1
]}

SAKURAI, Y ^{[1
]}

机构：

[1] SETSUNAN UNIV,FAC ENGN,NEYAGAWA,OSAKA 572,JAPAN

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1991年 / 27卷 / 06期

关键词：

D O I：

10.1109/20.278849

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The sensitivity of magneto-optical detection of small fields with multidomain materials under a coherent light is discussed. For fields below the saturation, a novel scheme is proposed to increase sensitivity. Separate detection of the undeflected zeroth order beam and diffracted beams enables their opposing responses to be added. A garnet of THETA(F) = 60-degrees yielded a high sensitivity of more than twice of that in conventional optical configuration while a material of THETA(F) = 90-degrees offers a theoretical improvement of a factor of four.

引用

页码：5393 / 5395

页数：3

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