Share this entry
photocathode Line breaks: photo|cath¦ode
Pronunciation: /ˌfəʊtə(ʊ)ˈkaθəʊd/

Definition of photocathode in English:


A cathode which emits electrons when illuminated, causing an electric current.
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.
Definition of photocathode in:
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove ads and access premium resources