Wavefront

Beam (structure)

Active optics

Materials science

Adaptive optics

Resistive touchscreen

Active cooling

Computer science

Metrology

X-ray optics

Deformable mirror

Thermodynamics

Physics

Optics

Synchrotron

X-ray

Water cooling

Computer vision

Synchrotron radiation

Optics Express

This article describes the development and testing of a novel, water-cooled, active optic mirror system (called "REAL: Resistive Element Adjustable Length") that combines cooling with applied auxiliary heating, tailored to the spatial distribution of the thermal load generated by the incident beam. This technique is theoretically capable of sub-nanometer surface figure error control even at high power density. Tests conducted in an optical metrology laboratory and at synchrotron X-ray beamlines showed the ability to maintain the mirror profile to the level needed for the next generation storage rings and FEL mirrors.

Adaptive shape control of wavefront-preserving X-ray mirrors with active cooling and heating