electron optics


electron optics
the study and use of the physical and optical properties of beams of electrons under the influence of electric or magnetic fields.
[1915-20]

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      branch of physics that is concerned with beams of electrons, their deflection and focusing by electric and magnetic fields, their interference when crossing each other, and their diffraction or bending when passing very near matter or through the spacings in its submicroscopic structure. Electron optics is based on the wave properties of electrons, which, according to quantum theory, can be treated either as particles or as waves. The wave behaviour was predicted and then experimentally established in the 1920s. Beams of electrons exhibit behaviour similar to those of light and X rays, and all these are subject to the same mathematical descriptions. One of the applications of electron optics is the electron microscope.

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Universalium. 2010.

Look at other dictionaries:

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  • electron optics — n pl but sing in constr a branch of physics in which the principles of optics are applied to beams of electrons elec·tron op·ti·cal i .lek .trä näp ti kəl adj …   Medical dictionary

  • electron optics — n. the branch of electronics having to do with the focusing and deflection of beams of electrons by means of electric and magnetic fields, which act upon the beams in the same way that lenses act on light rays …   English World dictionary

  • electron optics — elektroninė optika statusas T sritis automatika atitikmenys: angl. electron optics vok. Elektronenoptik, f rus. электронная оптика, f pranc. optique électronique, f …   Automatikos terminų žodynas

  • electron optics — elektroninė optika statusas T sritis fizika atitikmenys: angl. electron optics vok. Elektronenoptik, f rus. электронная оптика, f pranc. optique électronique, f …   Fizikos terminų žodynas

  • electron optics — noun plural but singular in construction Date: 1916 a branch of physics in which the principles of optics are applied to beams of electrons • electron optical adjective …   New Collegiate Dictionary

  • electron optics — branch in physics in which the principals of optics are applied to beams of electrons …   English contemporary dictionary

  • electron optics — plural noun [treated as sing.] the branch of physics concerned with the behaviour of electrons in magnetic and electric fields …   English new terms dictionary

  • electron optics — elec′tron op tics n. opt (used with a sing. v.) the study and use of the physical and optical properties of beams of electrons under the influence of electric or magnetic fields • Etymology: 1915–20 …   From formal English to slang

  • electron optics — noun the branch of electronics that deals with beams of electrons and their focusing and deflection by magnetic fields • Hypernyms: ↑electronics …   Useful english dictionary


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