Dark current is the constant response exhibited by a receptor of radiation during periods when it is not actively being exposed to light. It may refer to:
- Dark current (biochemistry) : The depolarizing current, carried by Na+ ions, that flows into a photoreceptor cell when unstimulated.
- Dark current (physics): The relatively small electric current that flows through a photosensitive device when no photons are entering the device.
- Dark current (chemistry) : The constant response produced by a spectrochemical receptor, in the absence of radiation.
Famous quotes containing the words dark and/or current:
“The sea
takes on that desperate tone
of dark that wives put on
when all their love is done.”
—Hilda Doolittle (1886–1961)
“Talent develops in quiet places, character in the full current of human life.”
—Johann Wolfgang Von Goethe (1749–1832)