Metamaterial Sensors

Figure 3

(a) Schematic diagram of a cross-sectional view of the nonlinear planar waveguide sensor with a metamaterial layer. 𝑑₁=500 nm, 𝜀_𝑐=2, 𝜀_𝑠=2.2, 𝜀_𝑔=4, 𝜀_𝑚=−2, 𝑑₂=80 nm, 𝑛=−0.6, and 𝜆=1550 nm. (b) Normalized magnetic field 𝐻_𝑦 distribution along the 𝑥-direction of the nonlinear planar waveguide sensor without (dotted blue line) and with the metamaterial layer (solid red line) [20].

(a)

(b)