Figure 1
APS/Florian Marquardt

Figure 1: A planar slab of silicon with a periodic arrangement of snowflake-shaped holes (here viewed from above) forms a two-dimensional optomechanical crystal. (Left) By disrupting the alignment between successive horizontal lines and (not visible) locally altering the structure along that linear defect, Safavi-Naeini et al. produced a single localized defect mode (indicated here by a shaded ellipse) for optical radiation at the same place as a localized vibrational mode of the structure. (Right) In the future, a periodic arrangement of such defects could produce an “optomechanical array,” with photons and phonons tunneling between each pair of neighboring sites (exemplified by the arrow) and interacting with each other.