Apparatus for and method of operating electron beam attachment stabilized devices for producing controlled discharges and/or visible and UV laser output
US4203078A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 1977 |
| Grant date | May 13, 1980 |
| Priority date | — |
| Expiry date | May 6, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/09707
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Apparatus for and method of operating a laser wherein a discharge is produced preferably in a high pressure lasing gaseous mixture comprising at least one suitable first gaseous species capable of providing an excited state which has a finite probability of being ionized and a molecular second gaseous species having a capability for attaching electrons to form negative ions. The gaseous mixture may, for example, comprise argon, neon, helium, xenon, krypton or a metal vapor such as mercury as the first species and, for example, hydrogen iodide, carbon tetrachloride, bromine, iodine or fluorine as the second species. A buffer gas such as, for example, argon, helium or neon may also be used. The discharge is produced by means of an electron beam and an electric field. The discharge resulting from the application of the electric field heats secondary electrons produced by the electron beam to an energy level sufficient to make excited states. Thus, for a mixture comprising argon, krypton and fluorine, for example, the heated secondary electrons pump at least some of the argon and the krypton to the metastable state. The excited argon transfers energy to the krypton to form additional e…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.