Definitions: P

The effect, present in particular phosphors, that is defined as a transformation in the dielectric constant of a material when illuminated.

The dielectric coefficient parallel to the director in a liquid crystal display (LCD), rather than perpendicular to the director.

A formulaic description of the linear change of the reciprocal optical dielectric tensor with either stress or strain.

A photon jet is a narrow, highly collimated beam of light that is formed when light interacts with small dielectric microstructures, such as microspheres or microcylinders. This phenomenon arises due...

A plasma accelerator is a type of particle accelerator that uses electric fields and magnetic fields to accelerate charged particles, typically electrons or ions, by exploiting the motion of charged...

Plasmonics is a field of science and technology that focuses on the interaction between electromagnetic radiation and free electrons in a metal or semiconductor at the nanoscale. Specifically,...

A polariton is a quasiparticle resulting from the strong coupling between photons (light particles) and certain types of excitations in a material, such as electronic excitations (electrons and...