Figure 3
Polarization characteristics and extinction ratio of PCQWID.
(a) Measured photocurrent average intensity at λ = 14.2~14.9 μm against incident light polarization angle. The red line shows normalized calculation of the square sine curve, showing a typical polarizer behavior. (b) the original photocurrent spectra vs. wavelength at different polarization angles. The photocurrent peak does not corresponding to the highest extinction ratio, as explained in the context. (c) Measured and simulated extinction ratio spectra for the PCQWID, indicating the maximum extinction ratio occurs at around the peak wavelength of LSP mode.
