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Fig. 11
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Chromatic selection function of the Euclid optical elements. The VIS detectors have zero QE for photons with λ > 2.15 µm. The exact behaviour of the dichroic above 2.2 µm is unknown: longer wavelengths could enter NISP and would be blocked by the filters (see Sect. 5.1 and Fig. 12 for more details).
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