Figure 1
From: Strong Optomechanical Coupling in Nanobeam Cavities based on Hetero Optomechanical Crystals

(a) The plan-view schematic of the proposed optomechanical crystal nanobeam cavities. (b) The unit cell constituting the structure. (c–e) The unit cells constituting P-II, P-I regions and one of the two central holes.