Hα LFs at various redshifts. The dotted lines mark the nominal flux limit of Euclid (3 × 10^-16 erg cm^-2 s^-1) in the lower bound of each redshift range. Observed Schechter LFs are shown as thin lines and squares in the observed luminosity range and listed in the labels. For comparison, the LFs from Empirical Models 1, 2, and 3 are shown (in yellow, cyan, and pink, respectively) as thick lines in the same redshift range (shown in the two extremes of each redshift bin).