Back to results
US 7,728,520 B2Granted
Optical modulator of electron beam
AssigneeApplied Nanotech Holdings, Inc.
InventorsZvi Yaniv, Igor Pavlovsky, Richard Fink
Life of this patent
Estimating the term…
Abstract
An optoelectronic modulator is based on the concentration of an electron beam from an electron gun by a tapered cavity, which sides are photosensitive and change the electrical conductivity under the illumination of light (electromagnetic radiation). The light modulation causes the corresponding changes in the current transported across the walls of the cavity. The remaining part of the electron current exits the cavity aperture and forms an amplitude-modulated divergent electron beam.
Claims18
An apparatus comprising:
- an optically active electron concentrator with an exit aperture;
- an electron source configured for emitting an electron beam towards the optically active electron concentrator;
- and
- a light source aimed at the optically active electron concentrator, the light source configured for modulating output of the electron beam through the exit aperture.
1 more element
An apparatus comprising:
- an electron concentrator with an exit aperture;
- an electron source configured for emitting an electron beam towards the electron concentrator;
- and
- an electromagnetic radiation source aimed at the electron concentrator, the electromagnetic radiation source configured for modulating output of the electron beam through the exit aperture.
1 more element
Dependencies are inferred from the claim text.