Fig. 1: Magnetic field sensing via exceptional point enhanced magneto-optical effect. | Light: Science & Applications

Fig. 1: Magnetic field sensing via exceptional point enhanced magneto-optical effect.

From: An “exceptional” magnetic sensor

Fig. 1

a The conventional magneto-optical (MO) effect and the exceptional point (EP) enhanced MO effect. The mode splitting is suppressed when the magnetic field strength is below EP and accelerated after passing EP. b Schematics of the experimental system. Linearly polarized laser light is injected into the cavity; the MO crystal couples two linear polarization components of light while the tunable liquid crystal (LC) absorber induces polarization-dependent losses. The output modes are thus elliptically polarized and require mode analysis

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