1 September 2009 Performance of ferroelectric liquid crystal spatial light modulators for polarization and color diffractive elements
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Abstract
In this work we applied a ferroelectric liquid crystal on silicon (FLCoS) display for implementing monochrome and color diffractive optical elements (DOE). We first apply a reverse engineering process specifically adapted to characterize the optical parameters of a commercial FLCoS display, specifically the phase shift and the tilt angle. We then analyze the performance of the device for implementing a binary polarization diffraction grating (PDG), and how it adopts the form of either a binary amplitude grating or a binary phase grating as particular cases when the polarization states emerging from the display are projected to an analyzer. As a final experiment, we have applied the FLCoS display to generate RGB improved dynamic color binary-phase Fourier computer-generated holograms (CGHs). We have electronically synchronized the properly scaled image addressed to the display with a color filter wheel with RGB filters. Experimental results show an excellent chromatic compensation of the color image reconstruction.
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Ignacio Moreno, Ignacio Moreno, P. García-Martínez, P. García-Martínez, M. M. Sánchez-López, M. M. Sánchez-López, A. Martínez-García, A. Martínez-García, J. L. Martínez, J. L. Martínez, } "Performance of ferroelectric liquid crystal spatial light modulators for polarization and color diffractive elements", Proc. SPIE 7442, Optics and Photonics for Information Processing III, 74420W (1 September 2009); doi: 10.1117/12.826154; https://doi.org/10.1117/12.826154
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