Liquid Crystal Spatial Light Modulators

Liquid crystals (LCs) are matter in a state which has properties between those of conventional liquids and those of solid crystals. For instance, a liquid crystal may flow like a liquid, but its molecules may be oriented in a crystal-like way. The LCs allow to modify and control the phase or polarization of output light. These modulations are obtained by the use of elliptically polarized light to illuminate the LCSLM and to detect another polarization state at the exit.

We have proposed a model for the Jones matrix of a twisted nematic LCSLM and a method to experimentally obtain the parameters of the model. Based on this model we have proposed the optimization of the modulation capabilities to produce amplitude only or phase only modulations. These modulations are obtained by the use of elliptically polarized light to illuminate the LCSLM and to detect another polarization state at the exit.

We have studied the modulation capabilities of LCSLM on Silicon (LCoS), and the influence of the fluctuations.

We have studied the use of these devices in optical correlators and to display Diffractive Optical Elements. We have also studied their use in metrology.

 polarization_vortices

  1. H. ZhangLizana, A.Iemmi, C.Monroy-Ramírez, F. A.Márquez, A.Moreno, I., and Campos, J.“LCoS display phase self-calibration method based on diffractive lens schemes”, Optics and Lasers in Engineering, vol. 106, pp. 147 - 154, 2018.
  2. H. ZhangLizana, A.Iemmi, C.Monroy-Ramírez, F. A.Márquez, A.Moreno, I., and Campos, J.“Self-addressed diffractive lens schemes for the characterization of LCoS displays”, Proc. SPIE, vol. 10555, pp. 10555-1 - 10555 - 11, 2018.
  3. J. AlberoGarcía-Martínez, P.Martínez, J. L.Moreno, I., and Campos, J.“Diffraction efficiency considerations and experimental realization for adaptive phase gratings with liquid crystal panels”, Proceedings SPIE, vol. 8550, pp. 85503C-1-6, 2012.
  4. A. LizanaLobato, L.Márquez, A.Moreno, I.Iemmi, C., and Campos, J.“Enhancement of a PALCoS display efficiency by reducing the influence of different non-desired phenomena”, Proc. SPIE, vol. 8011, p. 80112Y-80112Y-8, 2011.
  5. I. MorenoIemmi, C.Campos, J., and Yzuel, M. J.“Jones matrix treatment for optical Fourier processors with structured polarization”, Opt. Express, vol. 19, pp. 4583–4594, 2011.
  6. A. MárquezLizana, A.Moreno, I.Iemmi, C.Campos, J., and Yzuel, M. J.“Some applications of liquid crystal panels in diffractive optics”, Proc. SPIE, vol. 8001, p. 80010S-80010S-11, 2011.
  7. L. LobatoMárquez, A.Lizana, A.Moreno, I.Iemmi, C., and Campos, J.“Characterization of a parallel aligned liquid crystal on silicon and its application on a Shack-Hartmann sensor”, Proc. SPIE, vol. 7797, p. 77970Q-77970Q-12, 2010.
  8. A. LizanaMárquez, A.Lobato, L.Rodange, Y.Moreno, I.Iemmi, C., and Campos, J.“The minimum Euclidean distance principle applied to improve the modulation diffraction efficiency in digitally controlled spatial light modulators”, Opt. Express, vol. 18, pp. 10581–10593, 2010.
  9. A. LizanaMoreno, I.Márquez, A.Iemmi, C.Campos, J., and Yzuel, M. J.“Characterization and analysis of LCoS displays: application to diffractive optics”, Proc. SPIE, vol. 7442, p. 74420Y-74420Y-12, 2009.
  10. A. LizanaMartin, N.Estapé, M.Fernández, E.Moreno, I.Márquez, A.Iemmi, C.Campos, J., and Yzuel, M. J.“Influence of the incident angle in the performance of Liquid Crystal on Silicon displays”, Opt. Express, vol. 17, pp. 8491–8505, 2009.
  11. A. LizanaMoreno, I.Márquez, A.Also, E.Iemmi, C.Campos, J., and Yzuel, M. J.“Influence of the temporal fluctuations phenomena on the ECB LCoS performance”, Proc. SPIE, vol. 7442, p. 74420G-74420G-11, 2009.
  12. I. MorenoLizana, A.Campos, J.Márquez, A.Iemmi, C., and Yzuel, M. J.“Combined Mueller and Jones matrix method for the evaluation of the complex modulation in a liquid-crystal-on-silicon display”, Opt. Lett., vol. 33, pp. 627–629, 2008.
  13. A. LizanaMartin, N.Fernández, E.Márquez, A.Moreno, I.Iemmi, C.Campos, J., and Yzuel, M. J.“Influence of the incident angle in the performance of LCoS displays”, Proc. SPIE, vol. 6994, p. 69940J-69940J-11, 2008.
  14. A. MárquezMoreno, I.Iemmi, C.Lizana, A.Campos, J., and Yzuel, M. J.“Mueller-Stokes characterization and optimization of a liquid crystal on silicon display showing depolarization”, Opt. Express, vol. 16, pp. 1669–1685, 2008.
  15. A. LizanaMoreno, I.Márquez, A.Iemmi, C.Fernández, E.Campos, J., and Yzuel, M. J.“Time fluctuations of the phase modulation in a liquid crystal on silicon display: characterization and effects in diffractive optics”, Opt. Express, vol. 16, pp. 16711–16722, 2008.
  16. A. LizanaMoreno, I.Iemmi, C.Márquez, A.Campos, J., and Yzuel, M. J.“Time-resolved Mueller matrix analysis of a liquid crystal on silicon display”, Appl. Opt., vol. 47, pp. 4267–4274, 2008.
  17. A. MárquezMoreno, I.Iemmi, C.Campos, J., and Yzuel, M. J.“Electrical origin and compensation for two sources of degradation of the spatial frequency response exhibited by liquid crystal displays”, Optical Engineering, vol. 46, pp. 114001-114001-7, 2007.
  18. A. MárquezMoreno, I.Campos, J., and Yzuel, M. J.“Analysis of Fabry–Perot interference effects on the modulation properties of liquid crystal displays”, Optics Communications, vol. 265, pp. 84 - 94, 2006.
  19. A. MárquezIemmi, C.Moreno, I.Campos, J., and Yzuel, M. J.“Anamorphic and spatial frequency dependent phase modulation on liquid crystal displays. Optimization of the modulation diffraction efficiency”, Opt. Express, vol. 13, pp. 2111–2119, 2005.
  20. A. MárquezCazorla, C.Yzuel, M. J., and Campos, J.“Characterization of the retardance of a wave plate to increase the robustness of amplitude-only and phase-only modulations of a liquid crystal display”, Journal of Modern Optics, vol. 52, pp. 633-650, 2005.
  21. I. MorenoMárquez, A.Nicolás, J.Campos, J., and Yzuel, M. J.“Diffraction efficiency of phase-only diffractive elements displayed onto twisted nematic liquid crystal displays”, Proc. SPIE, vol. 5456, pp. 186-196, 2004.
  22. J. NicolásCampos, J., and Yzuel, M. J.“Elliptic light polarization modulation of liquid crystal panels”, Proc. SPIE, vol. 4829, pp. 426-427, 2003.
  23. J. A. DavisYzuel, M. J.Campos, J.Moreno, I.Márquez, A., and Nicolás, J.“Review of operating modes for twisted nematic liquid crystal displays for applications in optical image processing”, Proc. SPIE, vol. 5181, pp. 120-131, 2003.
  24. J. NicolásCampos, J., and Yzuel, M. J.“Phase and amplitude modulation of elliptic polarization states by nonabsorbing anisotropic elements: application to liquid-crystal devices”, J. Opt. Soc. Am. A, vol. 19, pp. 1013–1020, 2002.
  25. A. MárquezIemmi, C.Moreno, I.Davis, J. A.Campos, J., and Yzuel, M. J.“Quantitative prediction of the modulation behavior of twisted nematic liquid crystal displays based on a simple physical model”, Optical Engineering, vol. 40, pp. 2558-2564, 2001.
  26. A. MárquezCampos, J.Yzuel, M. J.Moreno, I.Davis, J. A.Iemmi, C.Moreno, A., and Robert, A.“Characterization of edge effects in twisted nematic liquid crystal displays”, Optical Engineering, vol. 39, pp. 3301-3307, 2000.
  27. O. López‐CoronadoMoreno, I.Campos, J., and Yzuel, M. J.“Full in-situ characterization of spatial light modulators in an optical correlator. Filter adaptation to operating curves”, Journal of Modern Optics, vol. 45, pp. 2461-2472, 1998.
Campus d'excel·lència internacional U A B