Optical bistability and multistability via double dark resonance in graphene nanostructure
Hossein Asadpour Seyyed†, 
, Solookinejad G, Panahi M, Ahmadi Sangachin E
, Solookinejad G, Panahi M, Ahmadi Sangachin E Plots of output filed versus input field for different values of (a) RHC and LHC fields and (b) detunings of RHC and LHC field. The other parameters are same as those in Fig.
