Optical Bistability in a Controllable Giant Self-Kerr Nonlinear Gaseous Medium under Electromagnetically Induced Transparency and Doppler Broadening

Figure 1

Schematic setup of a unidirectional ring cavity (a) containing a three-level atomic sample (b), where and denote the incident and transmitted probe field, respectively, and represents the coupling field that is not circulated inside the cavity.

(a)

(b)