Horiba Jobin Yvon Sas

Christian Brach

Simon Richard

Olivier Acher

Viviane Millet

Sebastien Corde

Daphne Heran

A spectrometer () for analyzing the spectrum of an upstream light beam (), includes an entrance slit () and collimating elements () suitable for generating, from the upstream light beam, a collimated light beam (), characterized in that it also includes: a polarization-dependent diffraction grating () suitable for diffracting, at each wavelength () of the spectrum of the upstream light beam, the collimated light beam into a first diffracted light beam () and a second diffracted light beam (); optical recombining elements () including a planar optical reflecting surface () perpendicular to the grating and suitable for deviating at least the second diffracted light beam; and focussing elements () suitable for focussing, at each wavelength, the first diffracted light beam and the second diffracted light beam onto one and the same focussing area ().

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Saint Arnoult en Yvelines, France

Christian Brach