![]() ![]() Dispersive Pulse Broadening Unchirped pulse duration:Įnter input values with units, where appropriate. After 10 cm, the pulse duration would increase to 334 fs. ![]() This is an effect of the increased pulse bandwidth.Īs a numerical example, an initially unchirped 30-fs pulse at 800 nm becomes stretched to 45 fs after 10 mm of propagation in silica (with +360 fs 2). In that regime, shorter input pulses lead to longer output pulses. The approximation holds for the case of strong broadening, i.e., for. Mathematical Description of Chromatic DispersionĪn early measure for the magnitude of chromatic dispersion was the Abbe number, introduced by Ernst Abbe: The attribute “chromatic” is used to distinguish that type of dispersion from other types, which are relevant particularly for optical fibers: intermodal dispersion and polarization mode dispersion.Ĭhromatic dispersion can also occur from geometrical effects, for example see below the section on chromatic dispersion of optical components. A quantitative measure is the group velocity dispersion. Chromatic polynomial, a polynomial which encodes the number of different ways to vertex color a graph using n colors Chromatic numbering Chromatic index. chromatic semitone in British English (krmætk smtn ) noun music the pitch difference between one note and its sharpened or flattened equivalent Collins English Dictionary. ![]() That dependency results mostly from the interaction of light with electrons of the medium, and is related to absorption in some spectral regions see the article on Kramers–Kronig relations. The first way you can immediately apply this to your chord progression writing is to simply alter one of the scale tones you are working with and harmonize it. The intensity and vividness of a color is created by the saturation. Saturation is a determining factor in distinguishing one from another. The chromatic dispersion of an optical material is the phenomenon that the phase velocity and group velocity of light propagating in a transparent medium depend on the optical frequency. Simply put, chromatic harmony occurs when the used chords in a given passage or section contain notes that do not belong to the tonality we are working with. Chromatic and achromatic colors are groups of colors that can create a specific look or feel whether you use them in art, photography, or interior design. How to cite the article suggest additional literature More specific terms: normal and anomalous dispersion, material dispersion, waveguide dispersion, group delay dispersion, third-order dispersion, principal dispersion Definition: the frequency dependence of the phase velocity in a transparent medium ![]()
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