Kerr cell

noun (1)
\ ˈkär-, ˈkər-\

Definition of Kerr cell

 (Entry 1 of 2)

: a cell that contains electrodes immersed in nitrobenzene or other liquid, that exhibits double refraction in a high degree and with short time lag, and that is used in devices where the intensity of light is to be changed rapidly in accordance with the voltage applied to the electrodes (as in the recording of sound tracks for motion pictures) — compare kerr effect

Kerr effect

noun (2)

Definition of Kerr effect (Entry 2 of 2)

1 : the production of double refraction in various dielectrics when placed in a strong electric field
2 : the rotation of the plane of polarization when plane-polarized light is reflected from the end of a magnet

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History and Etymology for Kerr cell

Noun (1)

after John Kerr †1907 Scottish physicist

Noun (2)

after John Kerr

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