DEVICE FOR PROCESSING LIGHT/OPTICAL RADIATION, METHOD AND SYSTEM FOR DESIGNING SUCH A DEVICE

摘要

A device is provided for processing a light radiation, including at least two reflective optical elements defining a multi-pass cavity so that at least one of the optical elements reflects the light radiation at least twice, at at least two different reflection positions, and including at least one element, called corrective element, having at least one position, called corrective position, producing a reflection or a transmission of the optical radiation, and the surface of which is irregular so that the spatial phase profile of the corrective position has a different phase shift for several different reflection/transmission points of corrective position.

主权项

1. A device for processing a light radiation comprising: at least two reflective optical elements defining a multi-pass cavity so that each reflective optical element reflects said light radiation a plurality of times;
at least one element, called corrective element, comprising:
one of the reflective optical elements defining the multi-pass cavity; and/ora corrective element placed in the multi-pass cavity and different from the reflective optical elements defining said multi-pass cavity; the at least one corrective element having at least one position, called corrective position, producing a reflection or a transmission of said optical radiation and having an irregular surface so that the spatial phase profile of said corrective position has a different phase shift for several different reflection/transmission points of said corrective position; one of the reflective optical elements comprising a planar reflective surface and the other one of the reflective optical elements comprises a curved reflective surface; and at least one reflective element defining the multi-pass cavity comprising a through-hole making it possible to inject into the multi-pass cavity the radiation to be processed and/or to output the radiation from said multi-pass cavity after processing.