Figure 2
From: A broadband reflective-type half-wave plate employing optical feedbacks
Numerical results for the proposed half-wave plate under normal incidence. (a) Amplitude coefficients for the co-polarized and cross-polarized components of the reflected beam. (b) Phase difference of the reflected beams between cases where the polarizations of the input beam are parallel and perpendicular to the grating wires. For comparison purpose, (c) and (d) sketch the response curves obtained for the narrowband design case where the dielectric slabs is absent.
