Laser
US9059558B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 20, 2013 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | Jun 29, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser includes a total reflective mirror, an output mirror, a discharge lamp, and an active laser medium. The total reflective mirror, the output mirror, and the discharge lamp define a resonant cavity. The active laser medium is filled in the resonant cavity. The total reflective mirror includes a body, a metal film, and at least one microstructure. Each of the at least one microstructure is a step structure. The step structure includes a plurality of cylinders stacked with each other with respect to their diameters. Both the height and the diameter of the cylinders are in a range from about 0.5λ to about 2λ, while λ is a working wavelength of the laser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.