Fig. 5: Photonic multiple realities.

a Schematic picture of two optical spaces containing a boat-shaped scatterer and a tree-shaped scatterer. b, c The configurations of artificial materials Ⅳ and Ⅴ (AM Ⅳ and AM Ⅴ) consist of four types of units. The inset tables show the effective parameters associated with these units. d, e The intensity distributions (\({\left|{E}_{z}\right|}^{2}\)) for artificial materials Ⅳ and Ⅴ under the incidence of a Gaussian beam upon boundaries α and β at 0°, 30°, and 60°. f The intensity distributions for effective medium scatterers, i.e., boat-shaped scatterer of \({{{{\boldsymbol{\varepsilon }}}}}_{{{{\bf{C}}}}},{{{{\boldsymbol{\mu }}}}}_{{{{\bf{C}}}}}\) in a background of \({{{{\boldsymbol{\varepsilon }}}}}_{{{{\bf{A}}}}},{{{{\boldsymbol{\mu }}}}}_{{{{\bf{A}}}}}\), and tree-shaped scatterer of \({{{{\boldsymbol{\varepsilon }}}}}_{{{{\bf{D}}}}},{{{{\boldsymbol{\mu }}}}}_{{{{\bf{D}}}}}\) in a background of \({{{{\boldsymbol{\varepsilon }}}}}_{{{{\bf{B}}}}},{{{{\boldsymbol{\mu }}}}}_{{{{\bf{B}}}}}\), under the incidence of a Gaussian beam at 0°, 30°, and 60°.