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 Vector: Definitions, Direction of The Wave Vector, In Solid-state Physics, In Special Relativity

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

... When a photon is incident on a surface, the

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**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 ...

... 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

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**wave**packet, the wavelength of the particle is not precise, and the local wavelength deviates on either side of the main wavelength value ...

... 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 ...

... theory the electron beam is represented by a plane

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**vectors**are related to the real space lattice {a, b, c} in the following way For an incident electron with

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### Famous quotes containing the word wave:

“As the bird trims her to the gale,

I trim myself to the storm of time,

I man the rudder, reef the sail,

Obey the voice at eve obeyed in prime:

“Lowly faithful, banish fear,

Right onward drive unharmed;

The port, well worth the cruise, is near,

And every *wave* is charmed.””

—Ralph Waldo Emerson (1803–1882)