Physics

The complex DarkSide project uses a dual-phase physics detector at the subterranean Gran Sasso National Laboratory to look for interactions between dark matter particles in…

A tunable metamaterial has properties that can be changed by an external stimulus such as an electric or magnetic field, temperature, or strain. Metamaterials are…

A metamaterial is an artificial material with properties that are not found in naturally occurring materials. A nonlinear metamaterial is a material that has been…

A photonic metamaterial (PM), also known as an optical metamaterial, is a type of electromagnetic metamaterial that interacts with light at wavelengths ranging from terahertz…

In seismology, a P wave (primary wave or pressure wave) is one of two types of elastic body waves known as seismic waves. Because P…

Waves in plasmas are electromagnetic waves that travel through an ionized gas containing charged particles such as electrons and ions. Plasmas can be found in…

The reduction of sound energy as it propagates through a medium is referred to as acoustic attenuation. Sound wave attenuation can occur due to a…

A thermionic converter is made up of a hot electrode that thermionically emits electrons to a cooler electrode, producing useful electric power output. Caesium vapor…

Acoustic dispersion is the phenomenon in which the speed of sound waves through a medium varies with frequency. In other words, different frequencies of sound…

An acoustic metamaterial is a material that is designed to control and manipulate the propagation of sound waves. It is a man-made material with unique…

Acoustic waves are a type of energy propagation method that uses adiabatic loading and unloading to move through a medium. Acoustic pressure, particle velocity, particle…

In physics, a transverse wave is one whose oscillations are perpendicular to the wave’s advance direction. This is in contrast to a longitudinal wave, which…