Corrugated reflector apparatus and method for free electron lasers
US4697272A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 1986 |
| Grant date | Sep 29, 1987 |
| Priority date | — |
| Expiry date | May 9, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/0635
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A blazed corrugated reflector having internal corrugations or vanes, blazed at specified design angles, coherently reflects power at specified wavelengths. The corrugations meet the criteria of effecting retroreflection according to the Bragg conditions for gratings, eliminating higher order modes of reflection, and maximizing retroreflection and minimizing forward scattering according to the blaze condition. Two such reflectors can be configured into a laser resonator by placing them at opposing ends of a matching waveguide. The reflector does not obstruct the passage of an axial electron beam, thereby making it suitable to implement the resonator portion of a free electron laser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.