Fig. 4

Transmittance of defected SPC as \(\left[\text{Air}*{({PSi}_{1}*{PSi}_{2})}^{N}*\text{PNC }*{({PSi}_{2}*{PSi}_{1})}^{N}*\text{Substrate}\right]\) using unirradiated (black line) and irradiated PNC (other spectra) with γD from 0 to 70 Gy at \({d}_{1}=100\,{\text{nm}}\), \({d}_{2}=170\,{\text{nm}}\), \({P}_{1}=20 \%\), \({P}_{2}=80 \%\) ,and \({d}_{D}=100\,{\text{nm}}\).