Remote weak-signal measurement via bound states in optomechanical systems

Xun Li,Biao Xiong,Shilei Chao,Chengsong Zhao,Hua-Tang Tan,Ling Zhou

Figure 4. Sensitivity spectra for different temperatures. The parameters of for the solid lines are same as for the blue line in figure 3(b). The black dashed and dotted line represents the SQL of optomechanical detection where thermal noise with T=300 K is included. The dashed line corresponds to the green dotted line in figure 3(a) without a bound state, whose sensitivity is limited to ${10}^{-16}{\rm{N}}/\sqrt{\mathrm{Hz}}$. With the optimized bound states, larger detection widths and higher sensitivities can be achieved. The other unspecified parameters are the same as those used for figure 2.