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Fig. 4

image

Individual detector (blue dashed lines) and averaged (red line) normalised Ti–Al spectral response (ΔSi/ max(ΔSi), where ΔSi is the response of the ith pixel). The dispersion level between pixels is of the order of a few per cent. For illustration, the spectral response of the Ti–Al array is compared to the one of a pure 18 nm thick Al LEKID array with a Tc of approximately 1.4 K (dashed black line).

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