High speed photodetector having dual transmission line geometry
US4933542A · kind A · utility
7Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1988 |
| Grant date | Jun 12, 1990 |
| Priority date | — |
| Expiry date | Oct 31, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F30/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vacuum photodetector has been fabricated in a coplanar microstrip transmission line geometry to achieve high quantum efficiency and picosecond response time. The coplanar microstrip transmission lines, photocathode and anode, are mounted on an insulating substrate such as sapphire and are electrically biased with respect to each other. Photodetection occurs by classical photoelectric emission as a result of impinging photon energies exceeding the work function of the photocathode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.