Wave Vector

In physics, a wave vector (also spelled wavevector) is a vector which helps describe a wave. Like any vector, it has a magnitude and direction, both of which are important: Its magnitude is either the wavenumber or angular wavenumber of the wave (inversely proportional to the wavelength), and its direction is ordinarily the direction of wave propagation (but not always, see below).

In the context of special relativity the wave vector can also be defined as a four-vector.

Read more about Wave VectorDefinitions, Direction of The Wave Vector, In Solid-state Physics, In Special Relativity

Other articles related to "wave vector, wave, vectors, wave vectors":

Surface Plasmon - Effects of Roughness
... When a photon is incident on a surface, the wave vector of the photon in the dielectric material is smaller than that of the SPP ... In order for the photon to couple into a SPP, the wave vector must increase by ... to the supporting interface to match the terms where is the wave vector of the grating, is the angle of incidence of the incoming photon, a is the grating period, and n is an integer ...
Billow - Quantum Mechanical Waves - De Broglie Waves
... A wave representing such a particle traveling in the k-direction is expressed by the wave function as follows where the wavelength is determined by the wave ... of different wavelengths ranging around a central value in a wave packet, a waveform often used in quantum mechanics to describe the wave function of a particle ... In a wave packet, the wavelength of the particle is not precise, and the local wavelength deviates on either side of the main wavelength value ...
Acousto-optics - Acousto-optic Devices - Acousto-optic Filter
... By tuning the frequency of the acoustic wave, the desired wavelength of the optical wave can be diffracted acousto-optically the angle between the acoustic wave vector and the crystallographic axis z of the crystal ...
Low-energy Electron Diffraction - Theory of LEED - Kinematic Theory: Single Scattering
... theory the electron beam is represented by a plane wave with a wavelength in accordance to the de Broglie hypothesis The interaction between the scatterers present in the surface and the incident electrons ... dimensions the primitive reciprocal lattice vectors are related to the real space lattice {a, b, c} in the following way For an incident electron with wave ... The magnitudes of the wave vectors are unchanged, i.e ...

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