'Invisibility Cloak' Realized in Theory

Fig.1: Cross sectional view of columnar invisible cloak: The yellow lines are the trajectories of light. The lines in other colors represent the boundaries between five media that constitute the invisible cloak. The region outside the boundary of radius 1 is the medium w1 (refractive index n > 0), the region surrounded by the red and blue lines and the x-axis is the medium R1 (refractive index n > 0), the region surrounded by the blue and brown lines is the medium R2 (refractive index n < 0), the region surrounded by the brown and green lines is R3 (refractive index n > 0) and the region surrounded by the purple and green lines and the x-axis is the medium R4 (refractive index n < 0). Diagram courtesy of Ochiai, Toyama Prefectural University

Fig.1: Cross sectional view of columnar invisible cloak: The yellow lines are the trajectories of light. The lines in other colors represent the boundaries between five media that constitute the invisible cloak. The region outside the boundary of radius 1 is the medium w1 (refractive index n > 0), the region surrounded by the red and blue lines and the x-axis is the medium R1 (refractive index n > 0), the region surrounded by the blue and brown lines is the medium R2 (refractive index n < 0), the region surrounded by the brown and green lines is R3 (refractive index n > 0) and the region surrounded by the purple and green lines and the x-axis is the medium R4 (refractive index n < 0). Diagram courtesy of Ochiai, Toyama Prefectural University

Close