Floquet modes in quasi-periodic temporal photonic crystals based on the Kolakoski sequence
We consider four 1D Kolakoski-type temporal PCs, denoted as Type-I \((\textrm{K}(1,2))\), Type-II \((\overline{\textrm{K}(1,2)})\), Type-III \((\textrm{K}(2,2))\), and Type-IV \((\overline{\textrm{K}(2,2)})\),…