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quarter wave plate

 - 1 dictionary result

quarter-wave plate

[kwawr-ter-weyv]
–noun Optics.
a crystal thin enough to cause a phase difference of 90° between the ordinary and extraordinary rays of polarized light, thereby converting circularly polarized light into plane polarized light.


Origin:
1880–85
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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