Figure 4
Optomechanical bistability. (a) Dependence of the relative optical force 
and elastic restoring force 
on the mutual out-of-plane separation D of neighboring silicon nitride nano-beams under 1555 nm forward illumination at a selection of incident power levels P0 (as labeled). (b, c) Corresponding bistable incident power dependencies of (b) mutual displacement and (c) optical transmission.
