Paper 13100-80
Paper 13100-80
Spectrally resolved measurements of the EUCLID Dichroic reflected wavefront error
19 June 2024 • 16:00 - 16:15 Japan Standard Time | Room G214, North - 2F
Abstract
We designed and manufactured an optical bench to characterize the EUCLID dichroic reflected wavefront at all useful incidences, all polarization states and each wavelength from 550nm to 950nm. The multilayer coating adds indeed some phase effect that vary suddenly in function of the wavelength. The testbed architecture, main functionalities and performances are presented. The preliminary results obtained on the dichroic mirror are compared to some simulations based on an up-to-date model of the multilayer coating.
Presenter
Guillaume Dovillaire
Imagine Optic SA (France)
Guillaume is the technical manager of Imagine Optic. He leads a team of 20 people focused on the design of Shack-Hartmann wavefront sensors, deformable mirrors and associated software. In the last four years, he’s involved as the main optics engineer in the design of the OBSERVE testbed dedicated to the characterization of the EUCLID dichroic spare part.