Fig. 1. Schematic of a multilayered polarization independent grating reflector under normal incidence with TE and TM polarized waves

Fig. 2. SEM image and reflectance spectra of the reflector normally illuminated by both TE and TM polarized waves

Fig. 3. Influence of the variation of grating period on the reflectance spectrum of the device. (a) TE polarized light; (b) TM polarized light

Fig. 4. Influence of the variation of grating thickness on the reflectance spectrum of the device. (a) TE polarized light; (b) TM polarized light

Fig. 5. Influence of the variation of (a) x1, (b) x3 and (c) x5 on the reflectance spectrum of the device under TE light illumination

Fig. 6. Influence of the variation of (a) x1, (b) x3 and (c) x5 on the reflectance spectrum of the device under TM polarized light

Fig. 7. Influence of the variation of tm on the reflectance spectrum of the device. (a) TE polarized light; (b) TM light illumination

Fig. 8. Influence of the variation of tb on the reflectance spectrum of the device. (a) TE polarized light; (b) TM polarized light