Difference between revisions of "Wavenumber"

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:<math>k = \frac{2\pi}{\lambda}\ </math>
:<math>k = \frac{2\pi}{\lambda}\ </math>
==External links==
* [[:Wikipedia:Wavenumber|Wavenumber]] — Wikipedia entry

Revision as of 00:08, 28 June 2011

Wavenumber, k, sometimes called the propagation number, is a quantification of spatial scale. It can be thought of as a spatial analog to the temporal frequency. It is often defined as the number of wavelngths per unit distance, or in terms of wavelength, λ:

In some applications, the angular wavenumber is sought, and expressed in radians per metre:

External links