分子法拉第磁光效应磁强计原理研究

Study on the Principle of a Molecular Magnetometer Based on the Faraday Magneto-optical Effect of NO_2

基于NO2 气体分子的法拉第磁光效应 ,采用磁旋转光谱技术 ,理论分析并实验测量了磁光信号对直流磁场的线性依赖关系。结合早先的磁光信号与交流磁场的线性关系[2 ] ,阐述了一种新型分子法拉第磁光效应磁强计的原理 ,预期其可以对 5 μT～ 10 0mT、DC～

Using magnetic rotation spectroscopy,the linear dependence of magneto optical signal on the DC magnetic field strength was analyzed both theoretically and experimentally based on the Faraday magneto optical effect of gaseous NO 2.Therefore,Combining with earlier result of the linear dependence of magneto optical signal on the ac magnetic field strength ,a molecular Faraday magneto optical effect magnetometer,which can measure a magnetic field ranging from 5 μT to 100 mT and from DC to 1 MHz relatively,was presented in principle.