Figure 1 | Scientific Reports

Figure 1

From: The role of tunable nonlinear dark resonances on vacuum Rabi splitting and optical bistability in an atom-cavity system

Figure 1

(a) Diagrammatic setup of FWM signal generation, consisting of four reflectors to form the ring cavity, and embedded nonlinear media 85Rb to produce the signal. The cavity frequency can be modulated by the piezoelectric transducer (PZT) that is mounted on mirror M4. An avalanche photodiode (APD) is placed at the terminal of the setup to detect the signal. PBS is the piezoelectric beam splitter. (b) The nested type interaction mode coupled with five energy levels. (c) The cascade type interaction mode coupled with five energy levels.

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