Experimental Simulation for Band Gap Characteristics of Two-dimensional Solid-liquid Phononic Crystals

Band gap of characteristics for phononic crystal are affected by different material,filling rat,and so on.Band gap characteristics of two-dimensional solid-liquid,solid-Air,solid-solid phononic crystals were calculated by finite difference time domain method.It could be concluded that band gap characteristics for two-dimensional square lattice phononic crystal consisting of cylinders by different solid material and water,and the influence of band gap of two-dimensional tungsten-water phononic crystals under different fill ratios were analyzed.These results provide the reference for the design of phononic crystal devices.