Definition of electron optics in English:

electron optics

plural noun

treated as singular
  • The branch of physics that deals with the behaviour of electrons and electron beams in magnetic and electric fields.

    ‘Electron optics was born in 1927, when Hans Busch showed that the elementary lens equation is applicable to electron image formation.’
    ‘Lenses for precision electron optics are mainly magnetic, requiring large cylinders of soft iron to focus an electron beam.’