Apparatus for exciting a plasma in a column of gas by means of microwaves, in particular for providing an ion laser
US4698822A · kind A · utility
11Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1986 |
| Grant date | Oct 6, 1987 |
| Priority date | — |
| Expiry date | Mar 28, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/46
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A waveguide (130) is coupled to a tubular member (2) by a gap (139) suitable for generating an intense surface wave in a gaseous mixture contained in the tubular member (2). Short circuits (110 and 120) delimit the plasma, thereby generating very high intensity standing microwaves, which increase the energy density of the plasma. An ion laser effect can then be observed, in particular in a mixture of argon and helium, together with optional krypton.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.