Device for emitting electromagnetic radiation at a predetermined wavelength
US6191431A · kind A · utility
5Cited by
2References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1998 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Apr 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/862
Abstract
A device for emitting radiation it a predetermined wavelength is disclosed. The device has a cavity comprising a first bulk region and a second bulk region of opposite conductivity type wherein a barrier is provided for spatially separating the charge carriers of the first and the second region substantially at the antinode of the standing wave pattern of said cavity. The recombination of the charge carriers at the barrier create radiation, the emission wavelength of the radiation being determined by the cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.