Fig. 3: Linear polarization characteristics.
From: Anapole-state-enhanced 2D chiral photodetector operating in the near-infrared second window
Measured reflectance spectra of the hybrid structure with input light of horizontal (a) and vertical (b) polarization. The three colored shaded areas represent the measured wavelengths of 1060, 1200 and 1550 nm in (c–j). Under 1550 nm light illumination, polar plots of the normalized perpendicular component of SHG intensity (c) and polar plots of photocurrents (d) from the MoS2/WSe2 heterostructure on the SiO2/Si substrate with the entire 360° rotation of the sample. Under 1060 nm (e, f), 1200 nm (g, h) and 1550 nm (i, j) light illumination, polar plots of the normalized perpendicular component of SHG intensity (e, g, i) and polar plots of photocurrents (f, h, j) from the MoS2/WSe2 heterostructure on the metasurface with the entire 360° rotation of the sample. The data points in c–j represent the measured data and the solid lines are the fitting curves fitted by Eq. (1) (c, e, g, i) and Eq. (2) (d, f, h, j).
