Photocathode designs and methods of generating an electron beam using a photocathode
US10535493B2 · kind B2 · utility
1Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2018 |
| Grant date | Jan 14, 2020 |
| Priority date | — |
| Expiry date | Oct 3, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L21/67288
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A photocathode can include a body fabricated of a wide bandgap semiconductor material, a metal layer, and an alkali halide photocathode emitter. The body may have a thickness of less than 100 nm and the alkali halide photocathode may have a thickness less than 10 nm. The photocathode can be illuminated with a dual wavelength scheme.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.