Definition of photocathode in English:


Line breaks: photo|cath¦ode
Pronunciation: /ˌfəʊtə(ʊ)ˈkaθəʊd


A cathode which emits electrons when illuminated, causing an electric current.
More example sentences
  • The photocathode in the night scope that converts visible light into electrons is sensitive to both visible light and some infrared radiation.
  • Reflections from the target were focused on a converter unit containing a photocathode, which provided the viewer with a reconstructed image.
  • If excitation light rejection at the photocathode were not an issue, this might simply require an increased integration time or gain setting to acquire a sufficient fluorescence signal for processing.

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