phononic-crystal

A phononic crystal is a periodic structure that controls and manipulates the propagation of acoustic waves. Similar to how photonic crystals manipulate light waves, phononic crystals can control the propagation of sound waves in a specific frequency range.

Phononic crystals are composed of materials with contrasting mechanical properties that are arranged in a periodic pattern. These materials can be solids, liquids, or gases, and the periodicity of the structure is typically on the order of the wavelength of the acoustic waves being controlled.

Phononic crystals have potential applications in a variety of fields such as acoustics, telecommunications, and sensing. They can be used to create sound filters, waveguides, and acoustic sensors, among other devices.