A visualization of electromagnetic fields in a kHz-band by utilizing atomic fluorescence

We are proposing and developing a visualization method of electromagnetic field in low-frequency bands by utilizing atomic fluorescence. In the method, a relationship between the cesium vapor atoms, a laser (852 nm), a magnetic field (9.2 GHz), a DC magnetic field, and a magnetic field in a low-frequency band (under observation) are used. In this paper, we report to be succeeded in demonstrating this proposing visualization method for a magnetic field at 105 kHz.