optical Doppler effect

optical Doppler effect

[′äp·tə·kəl ′däp·lər i‚fekt]
(electromagnetism)
A change in the observed frequency of light or other electromagnetic radiation caused by relative motion of the source and observer.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Melbourne, Mar 7 (ANI): For the first time ever, researchers have demonstrated a reversal of the optical Doppler effect, an advance that could lead to the development of 'invisibility cloak' technology.
Reversal of optical Doppler shift could lead to 'invisibility cloak'

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