The optical of the particles charged is the whole of the techniques intended to deviate a electronic Beam or ionic. The term “Optique” renvoit with the analogy enters an electronic ray and a Rayon luminous, with in particular the concept of focusing of beam and lens.

One distinguishes the optical electronics , which relates to the electron beams, and the ionic optical which relates to the beams of ions.

Relevance of the analogy

According to the quantum principle of the Duality wave-particle, a particle moving - electron or Ion - can be described by a Fonction of wave, and has in particular a associated Wavelength: the wavelength of Broglie.

Devices

The concept of beam of particles obliges to work under Vide. It uses the laws of the electromagnetism, and in particular the possibility of deviating a Electric current by a Magnetic field, as well as the possibility of attracting or of pushing back a electric Charge by electrostatic.

The optics of the particles charged uses magnetic lenses and electrostatic, as well as Déflectron S (the equivalent of the Miroir in luminous optics).

Applications

• Optical electronics:

• Television set with Cathode tube,
• Electron microscope,
• Microsounder of Castaing,
• Spectrometer Auger.
• Optical ionic:
• Spectrometry mass to secondary ionization (SIMS),
• Microscope with field effect,
• ionic Amincisseur.

See too