Open Filters: For optimum design wideband ARCs at oblique incidence of light and effect dispersion of material coating

Open Filter software was used to devote the optimum design for normal and oblique incidence of wide band antireflection coating taking into account the effect of dispersion for the used materials and substrate. The reflectance of the system were taking over a wide range of wavelength (300- 1000) nm. Result show dispersion effect of materials coatings appear clearly on the spectral characteristic in the region near UV. Also estimate the results of using offnormal (0-89º) incident radiation. Were the reflection performance of AR coating interference filter in collimated light for two polarization modes RP and RS show different characteristic.