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Photocathodes

A photocathode is an electrode used to release photoelectric emission when irradiated, making it then the irradiated negative electrode of a phototube.

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Lebow Co. - Goleta, CA

Luxel Corp. - Friday Harbor, WA

Glossary

photocathodes Photocathodes are specialized materials or surfaces that exhibit the photoelectric effect, wherein the absorption of photons leads to the emission of electrons. When photons with sufficient energy strike a photocathode, they transfer energy to the...
phototube An electron tube having a photocathode for the emission of a photoelectric current.
photoelectric effect The emission of an electron from a surface that occurs when a photon impinges upon the surface and is absorbed. This effect is the means by which photons may be detected.

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