Double optomechanical transparency with direct mechanical interaction*
Li Ling-Chao, Shi Rao, Xu Jun, Hu Xiang-Ming†
       
Dressed state mechanism for the probe absorption. (a) Three-level structure and the transitions for an optomechanical system with one moving mirror. (b) Level structure and transitions for two mechanical oscillators of the same frequency, one of which is the moving mirror and is coupled to the cavity field, while the other is a mechanical oscillator linked to the moving mirror but not coupled directly to the cavity field.