Phase-only modulation Phase modulation 8 Diffractive optical elements 6 Light modulation 6 Liquid crystal displays 6 Nematic liquid crystals 6 Optical filters 6 Amplitude modulation 4 Amplitude-only modulation 4 Diffractive optics 4 Fresnel lens 4 Light modulators 4 Liquid crystals 4 Modulation 4 Optical systems 4 Programmable apodizer 4 Silicon 4 Twisted nematic 4 Amplitude apodized Fresnel lens 2 Amplitude apodizers 2 Amplitude only modulation 2 Apodizers 2 Computational methods 2 Computer generated holograms 2 Correlation 2 Correlation methods 2 Data Display 2 Density (optical) 2 Diattenuators 2 Diffraction 2