Figure 1
From: A broadband reflective-type half-wave plate employing optical feedbacks
Illustrations on the design and operating principle of the proposed device. (a) Schematics of a half-wave plate with a narrow bandwidth. (b) Analytic model for treating the half-wave plate depicted in (a). (c) Schematics of the proposed half-wave plate with a broad spectral bandwidth. (d) Analytic model for treating the half-wave plate depicted in (c). Note that the blue and red colors are in correspondence to cases where the polarization angles are −45 degrees and 45 degrees with respect to the grating wires.
