Figure 2
From: Strain induced localization to delocalization transition on a Lieb photonic ribbon lattice
(a) A Lieb ribbon lattice with coupling coefficients indicated by arrows. Every filled disk represents an optical waveguide. (b) Linear spectrum versus transversal wavenumber \(k_x\) for \(V=1\) and \(V_d=0\). Inset: flat band mode, where only yellow and black disks are different to zero. (c) Linear spectrum versus \(k_x\) and nominal distance d. (d) Linear spectrum versus \(k_x\) for \(d=24\ \upmu \)m and \(d=16\ \upmu \)m shown using full and dashed lines, respectively. (e) Band width \(\Delta \lambda \) versus nominal distance d. This figure was drawn using Sketch 4.9.9, Wolfram Mathematica 12 and Omnigraffle 7.18.5.
