Tunable acoustic hooks from Janus cylinder

• Breaking the symmetry of material with sonic crystals to generate acoustic hooks. It has been demonstrated numerically that hooks obtained can be tunable. Potential applications in ultrasonic devices for manipulation or capture objects. In this paper we present a new way obtain tunable The breaking composition is used generation from Janus cylinders. This fact possible by using vary refractive index two half-cylinders. study carried out numerically, Finite Element Method. By changing contrast indexes between half-cylinders rotating cylinder, bending angle ranging 1° 21°. Full Width at Half-Maximum values close diffraction limit. structure provides an efficient method precisely tune hook depending on it use.