Rest-frame infrared and 1.4 GHz luminosities of the three lensed quasars detected with LOFAR, uncorrected for the lensing magnification. The corresponding rest-frame 144 MHz luminosities are shown on the opposing axis, scaled by spectral index . The median q_IR for star-forming galaxies from Ivison et al. (2010) is shown in yellow; the shaded region is 2 × σ_qIR, where σ_qIR is the intrinsic scatter. The solid red line shows the radio–infrared correlation at 150 MHz from Calistro Rivera et al. (2017) at z ∼ 1.5 scaled to 1.4 GHz; the dashed line shows 2 × σ_qIR.