Figure 1 | Scientific Reports

Figure 1

From: Perfect anti-reflection from first principles

Figure 1

Perfect broadband anti-reflection.

(a) Graded refractive index profile enabling a complete impedance matching for all frequencies. Dispersion of the graded index profile is expressed by rainbow colors where each color represents the corresponding frequency of visible light. Anomalous and normal dispersion regions are shown. (b) Reflection and transmission of a short time pulse entering from air (n = 1) into a medium (n = 4) with an impedance-matched anti-reflection (IMAR) layer, linearly graded AR layer and no AR layer. The linear AR layer reflects the low frequency components while the IMAR layer shows no reflection at all (see the supporting movies for the pulse propagation).

Back to article page