We report on an all-optical magnetometric technique based on nonlinearmagneto-optical rotation with amplitude-modulated light. The method enablessensitive magnetic-field measurements in a broad dynamic range. We demonstratethe sensitivity of $4.3\times10^{-9}$ G/$\sqrt{\text{Hz}}$ at 10 mG and themagnetic field tracking in a range of 40 mG. The fundamental limits of themethod sensitivity and factors determining current performance of themagnetometer are discussed.
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机译：我们报告了基于非线性磁光旋转与调幅光的全光磁法技术。该方法可以在较宽的动态范围内进行灵敏的磁场测量。我们证明了在10 mG时$ 4.3 \ times10 ^ {-9} $ G / $ \ sqrt {\ text {Hz}} $的灵敏度以及在40 mG范围内的磁场跟踪。讨论了方法灵敏度的基本限制以及确定磁力计当前性能的因素。
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