Chiral sculptured thin films for circular polarization of mid-wavelength infrared light
Chiral sculptured thin films for circular polarization of mid-wavelength infrared light
Being an assembly of identical upright helices, a chiral sculptured thin film (CSTF) exhibits the circular Bragg phenomenon and can therefore be used as a circular polarization filter in a spectral regime called the circular Bragg regime. This has been already demonstrated in the near-infrared and short-wavelength infrared regimes. If …