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Kerr effect

noun

, Physics.
  1. the double refraction of light in certain substances, produced by an electric field.


Kerr effect

noun

  1. Also calledelectro-optical effect the production of double refraction in certain transparent substances by the application of a strong electric field
  2. Also calledmagneto-optical effect a slight elliptical polarization of plane polarized light when reflected from one of the poles of a strong magnet
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of Kerr effect1

1905–10; named after John Kerr (1824–1907), Scottish physicist
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Word History and Origins

Origin of Kerr effect1

C19: named after John Kerr (1824–1907), Scottish physicist
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Example Sentences

This accumulation can be detected by taking advantage of the magneto-optic Kerr effect, in which the polarization, or orientation of the light, changes when it reflects from the surface of a magnet.

Last but not least, the researchers used a series of optical techniques, including Raman spectroscopy and magneto-optical Kerr effect measurement, to show that the formation of the spin quadrupole moments occurs at higher temperatures than the magnetic order.

“This is very interesting research, but there will be challenges applying this approach in the real world,” said Alan Huang, a former researcher at Bell Labs who has worked extensively with the “Kerr Effect,” a physical phenomenon that distorts optical signals, which the San Diego researchers are trying to overcome.

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Kerr cellkerria