In optics, burning is the abnormality in which the appearance acceleration of a beachcomber depends on its frequency,1 or alternatively if the accumulation acceleration depends on the frequency. Media accepting such a acreage are termed dispersive media. Burning is sometimes alleged bright burning to accent its wavelength-dependent nature, or group-velocity burning (GVD) to accent the role of the accumulation velocity. Burning is a lot of generally declared for ablaze waves, but it may action for any affectionate of beachcomber that interacts with a average or passes through an inhomogeneous geometry (e.g., a waveguide), such as complete waves.
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