US 2014/0177665 A1 · LASER

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. The at least one microstructure is concaved from a first reflective surface of the total reflective mirror. The at least one microstructure has a depth and a lateral size, and both the depth and the lateral size are in a range from about 0.5λ to about 2λ, while λ is a working wavelength of the laser.

Claims20

Dependent claims

A laser comprising:

a total reflective mirror comprising a body defining a first reflective surface, a metal film coated on the first reflective surface, and at least one microstructure, wherein the at least one microstructure is concaved from the first reflective surface;
an output mirror;
a discharge lamp, wherein the total reflective mirror and the output mirror are located on two opposite ends of the discharge lamp;
and
an active laser medium;
wherein the total reflective mirror, the output mirror, and the discharge lamp define a resonant cavity, and the active laser medium is filled in the resonant cavity.

3 more elements

Dependencies are inferred from the claim text.

Laser

Life of this patent

Laser

Life of this patent

Abstract

Claims20