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Image: Optical dispersion dynamics

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Optical_dispersion_dynamics.gif(360 × 223 pixels, file size: 1.04 MB, MIME type: image/gif, looped, 201 frames)
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Description: Time evolution of a short pulse in a dispersive medium (k=w^2) showing that the longer wavelength components travel faster than the high frequency ones, resulting in chirping and pulse stretching.
Title: Optical dispersion dynamics
Credit: https://twitter.com/j_bertolotti/status/1077269477211934721
Author: Jacopo Bertolotti
Permission: https://twitter.com/j_bertolotti/status/1030470604418428929
Usage Terms: Creative Commons Zero, Public Domain Dedication
License: CC0
License Link: http://creativecommons.org/publicdomain/zero/1.0/deed.en
Attribution Required?: No

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