We present a new methodology that enables a significant sensitivity improvement for transverse magneto-optical Kerr effect (T-MOKE) detection. For this purpose, we developed a novel measurement scheme, in which the polarization detection conditions are changed during the measurement sequence in a pre-defined way. An analytical expression of the associated T-MOKE signal pattern was derived, which allowed us to analyze and classify our experimental data in a straightforward way. Furthermore, this new measurement approach enables the identification of noise and false background signals that might be generated by the sample under investigation, the environment or the detection system itself and it provides a pathway to unambiguously separate all these effects from true T-MOKE signals. These capabilities significantly increase the sensitivity and robustness of T-MOKE detection. The method enabled us to measure magneto-optical signals for samples that are paramagnetic at room temperat...

中文翻译：

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使用有效的椭偏检测方案进行超灵敏的横向磁光Kerr效应测量

我们提出了一种新的方法，可以大大提高横向磁光克尔效应（T-MOKE）检测的灵敏度。为此，我们开发了一种新颖的测量方案，其中偏振检测条件在测量序列中以预定方式改变。导出了相关的T-MOKE信号模式的解析表达式，这使我们能够以简单的方式分析和分类实验数据。此外，这种新的测量方法能够识别正在研究的样品，环境或检测系统本身可能产生的噪声和虚假背景信号，它提供了将所有这些影响与真实T-MOKE信号明确区分的途径。这些功能大大提高了T-MOKE检测的灵敏度和耐用性。该方法使我们能够测量室温下顺磁性样品的磁光信号...