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• W2896681922 abstract "Spatial light modulator (SLMs) based on liquid crystal displays as phase only modulators can be used as programmable, diffractive optics. The field of applications ranges from adaptive optics, beam shapers to beam splitters. The quality of the beam shapers, measured on basis of diffraction efficiency and beam uniformity are the main deficiencies of such optics.Over the years many improvement in the generation of the holographic phase mask could be accomplished, but in the application, deviations in the SLMs lead to a degradation of the optical quality. In this paper we present two methods, to measure and compensate for the inhomogeneity of the maximum phase range and the distortion of the wave front by distortions of the surface layer of the SLM. The presented method allows the calibration of the SLM inside the optical setup.We use an iterative algorithm to address sub-regions of the SLM and measure the diffraction efficiency depending of the phase difference in a binary grating. From this data we can create a spatial map for the phase calibration curve, thus improving the overall efficiency of the SLM.Spatial light modulator (SLMs) based on liquid crystal displays as phase only modulators can be used as programmable, diffractive optics. The field of applications ranges from adaptive optics, beam shapers to beam splitters. The quality of the beam shapers, measured on basis of diffraction efficiency and beam uniformity are the main deficiencies of such optics.Over the years many improvement in the generation of the holographic phase mask could be accomplished, but in the application, deviations in the SLMs lead to a degradation of the optical quality. In this paper we present two methods, to measure and compensate for the inhomogeneity of the maximum phase range and the distortion of the wave front by distortions of the surface layer of the SLM. The presented method allows the calibration of the SLM inside the optical setup.We use an iterative algorithm to address sub-regions of the SLM and measure the diffraction efficiency depending of the phase difference in a binary grating. From this data we can cre..." @default.
• W2896681922 created "2018-10-26" @default.
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• W2896681922 date "2014-01-01" @default.
• W2896681922 modified "2023-09-22" @default.
• W2896681922 title "Self optimizing LCOS-SLM based beam splitter for high precision material processing" @default.
• W2896681922 doi "https://doi.org/10.2351/1.5063140" @default.
• W2896681922 hasPublicationYear "2014" @default.
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