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Theoretical analysis shows high sensitivity to refractive index changes in magneto-optical sensors, indicating potential for chemical and biological detection.
The magneto‐optical (MO) interferences in optical cavities consisting of magnetic stacked films were theoretically analyzed for chemical and biological sensing applications. The MO cavity systems indicated large MO enhancements and sharp responses to the changes in the environmental refractive index. The resolution of refractive index was approximately seven times higher than that of conventional surface plasmon sensors.
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Liu et al. (2025) studied this question.
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