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Description:
{{physics}} a sheet of birefringent material whose thickness is such that the light associated with the larger refractive index is retarded in phase by 90° with respect of that associated with the smaller refractive index; used to convert linearly polarized light into circularly polarized light
Ngram:
Ngram Text:
quarter-wave plate
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Wiktionary
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Wiktionary tag:
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2