Fig. 7
From: Observation of reflectionless absorption due to spatial Kramers–Kronig profile
Performances of discrete spatial Kramers–Kronig profiles with different discretization steps analyzed at 2.4 GHz. a–c The discrete x-dependent Kramers–Kronig profile with discretization steps of λ 0/20, λ 0/10, and λ 0/6, respectively. d–f The corresponding simulated amplitudes of the electric fields. The units of the x and y axis are the width a of the unit cell, as shown in Fig. 3a. Note that the same absolute color scale is used in these figures
