| NOUN | artifact | Kerr cell | optical device consisting of a transparent cell with two electrodes between two polarizing media |
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| Meaning | optical device consisting of a transparent cell with two electrodes between two polarizing media; passes light only if the two planes of polarization are parallel; used as a high-speed shutter or to modulate a laser beam. | |
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| Broader | optical device | A device for producing or controlling light |
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