US 2022/0291429 A1 · HOLOGRAPHIC PLASMA LENSES

Abstract

A diffractive optical element, such as a holographic plasma lens, can be made by direction two laser beams so that they overlap in a nonlinear material, to form an interference pattern in the nonlinear material. The interference pattern can modify the index of refraction in the nonlinear material to produce the diffractive optical element. The interference pattern can modify the distribution of plasma for the nonlinear material, which can adjust the index of refraction. A third laser beam can be directed through the diffractive optical element to modify the third laser beam, such as to focus, defocus, or collimate the third laser beam.

Claims22

Dependent claims

A system for making a diffractive lens, the system comprising:

at least one laser configured to provide first and second laser beams, and
a nonlinear medium, or a supply configured to provide a nonlinear medium, or a support configured to hold a nonlinear medium, said first and second laser beams disposed with respect to each other and with respect to said nonlinear medium so that the first and second laser beams are configured to interfere and form an interference pattern on the nonlinear medium;
wherein the interference pattern is configured to form a distribution of plasma from the nonlinear medium so as to produce a diffractive lens that is configured to modify the propagation of a third laser beam transmitted therethrough.

Dependencies are inferred from the claim text.

Holographic plasma lenses

Life of this patent

Holographic plasma lenses

Life of this patent

Abstract

Claims22