Fig. 3: Microwave-induced spectral shift.
From: Microwave-coupled optical bistability in driven and interacting Rydberg gases
a Color map of microwave intensity versus coupling light detuning at a microwave frequency blue detuning of 300 MHz. Color map of the nonequilibrium phase transition region as a function of microwave power reveals a linear shift in the nonequilibrium phase transition region with the square root of power. b The relationship plot between the frequency shift of the center point of bistability at the coupled light red detuning position and the square root of microwave power. The red (blue) segment (red for Δ1, blue for Δ2) in the figure represents the relationship at a microwave frequency red (blue) detuned for 300 MHz. The blue segment corresponds to the a. c Color maps showing the transmission difference of EIT when the microwave frequency is red-detuned by 1,500 MHz. d Frequency shift of the EIT spectral line versus the microwave power when the microwave frequency is far-detuned and the AT splitting cannot occur. The error bars represent the standard deviation of the data.
