Figure 4From: Microwave electrometry with bichromatic electromagnetically induced transparency in Rydberg atomsSusceptibility as a function of probe field detuning \(\Delta _{p}\). \(\operatorname{Re}[\chi ]\) (blue solid line) and \(\operatorname{Im}[\chi ]\) (red dash line) for (a) single and (b) bichromatic control fields. Other parameters are the same as in Fig. 2Back to article page