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Photorefractive Smectic Mesophases

  • Roberto TermineEmail author
  • Attilio Golemme
Chapter
Part of the Springer Series in Materials Science book series (SSMATERIALS, volume 240)

Abstract

The orientational contribution pointed out the major contribution of the molecular first order susceptibility to the index modulation in organic photorefractive materials. This discovery leads the way to the use of liquid crystals as PR materials due to their spontaneous birefringence and to the many possible electric field-induced reorientational effects. In this chapter, we are focusing on the structure and electro-optic properties of the smectic phases. After a brief introduction to the different phases (A and C), we will discuss the specific properties each phase contribute to in a photorefractive liquid crystal system. The theory of the molecular alignment into the photo-generated space-charge field is detailed incorporating the particularities due to liquid crystal phases and light polarization. Some specific cases are analyzed in detail such as the application of an AC field and the use of bistable devices which bring both long-term stability and nondestructive readout.

Keywords

Liquid Crystal Nematic Phase Director Orientation Smectic Phasis Smectic Layer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

This work was supported by the European Community’s Seventh Framework Program (FP7 2007-2013) through the Eliotropo (PON03PE_00092_2) Project and by MIUR, through PRIN 2012 (Project 2012JHFYMC).

References

  1. 1.
    Ashkin, A., Boyd, G., Dziedzic, J.M., Smith, R.G., Ballman, A.A., Levinstein, J.J., Nassau, K.: Optically-induced refractive index inhomogeneities in LiNbO3 and LiTaO3. Appl. Phys. Lett. 9, 72–73 (1966)CrossRefGoogle Scholar
  2. 2.
    Ducharme, S., Scott, J.C., Twieg, R.J., Moerner, W.E.: Observation of the photorefractive effect in a polymer. Phys. Rev. Lett. 66, 1846–1849 (1991)CrossRefGoogle Scholar
  3. 3.
    Moerner, W.E., Silence, S.M., Hache, F., Bjorklund, G.C.: Orientationally enhanced photorefractive effect in polymers. J. Opt. Soc. Am. B 11, 320–330 (1994)CrossRefGoogle Scholar
  4. 4.
    Wiederrecht, G.P.: Photorefractive liquid crystals. Annu. Rev. Mater. Res. 31, 139–169 (2001)CrossRefGoogle Scholar
  5. 5.
    Simoni, F., Lucchetti, L.: In: Günter, P., Huignard, J.-P. (eds.) Photorefractive Materials and Their Applications 2, p. 571. Springer, New York (2007)Google Scholar
  6. 6.
    Blinov, L.M., Chigrinov, V.G.: Electrooptic Effects in Liquid Crystals. Springer, New York (1993)Google Scholar
  7. 7.
    De Gennes, P.G., Prost, J.: The Physics of Liquid Crystals. Oxford University Press, New York (1993)Google Scholar
  8. 8.
    Khoo, I.C.: Optical-DC-field induced space charge fields and photorefractive-like holographic grating formation in nematic liquid crystals. Mol. Cryst. Liq. Cryst. 282, 53–66 (1996)CrossRefGoogle Scholar
  9. 9.
    Khoo, I.C., Guenther, B.D., Wood, M.V., Chen, P., Shih, M.-Y.: Coherent beam amplification with a photorefractive liquid crystal. Opt. Lett. 22, 1229–1231 (1997)CrossRefGoogle Scholar
  10. 10.
    Khoo, I.C., Ding, J., Zhang, Y., Chen, K., Diaz, A.: Supra-nonlinear photorefractive response of single-walled carbon nanotube-and C60-doped nematic liquid crystals. Appl. Phys. Lett. 82, 3587–3589 (2003)Google Scholar
  11. 11.
    Ukleja, P., Finotello, D.: In: Kumar, S. (ed.) Liquid Crystals: Experimental Study of Physical Properties and Phase Transitions, p. 155. Cambridge University Press, Cambridge (2001)Google Scholar
  12. 12.
    Lagerwall, S.T.: Ferroelectric and Antiferroelectric Liquid Crystals. Wiley, Weinheim (1999)CrossRefGoogle Scholar
  13. 13.
    Muševič, I., Blinc, R., Žecš, B.: The Physics of Ferroelectric and Antiferroelectric Liquid Crystals. World Scientific, Singapore (2000)Google Scholar
  14. 14.
    de Jeu, W.H.: Physical Properties of Liquid Crystalline Materials. Gordon and Breach, New York (1980)Google Scholar
  15. 15.
    Drzaic, P.S.: Liquid Crystal Dispersions. World Scientific, Singapore (1995)CrossRefGoogle Scholar
  16. 16.
    Ono, H., Kawatsuki, N.: Orientational photorefractive effects observed in polymer-dispersed liquid crystals. Opt. Lett. 22, 1144–1446 (1997)CrossRefGoogle Scholar
  17. 17.
    Golemme, A., Kippelen, B., Volodin, B.L., Peyghambarian, N.: Photorefractive polymer-dispersed liquid crystals. Opt. Lett. 22, 1226–1228 (1997)CrossRefGoogle Scholar
  18. 18.
    Golemme, A., Kippelen, B., Peyghambarian, N.: On the mechanism of orientational photorefractivity in polymer dispersed nematics. Chem. Phys. Lett. 319, 655–660 (2000)CrossRefGoogle Scholar
  19. 19.
    Termine, R., De Simone, B.C., Golemme, A.: Photorefractive chiral smectic A phases. Appl. Phys. Lett. 78, 688–690 (2001)CrossRefGoogle Scholar
  20. 20.
    Sonin, A.A.: The Surface Physics of Liquid Crystals. Gordon and Breach, Luxembourg (1995)Google Scholar
  21. 21.
    Termine, R., Golemme, A.: Polymer-dispersed chiral smectic A with photorefractive properties. Opt. Lett. 26, 1001–1003 (2001)CrossRefGoogle Scholar
  22. 22.
    Termine, R., Golemme, A.: Photorefractive index modulation in chiral smectic phases. J. Phys. Chem. B 106, 4105–4111 (2002)CrossRefGoogle Scholar
  23. 23.
    Sasaki, T.: Photorefractive effect in ferroelectric liquid crystals. Opt. Rev. 21, 99–109 (2014)CrossRefGoogle Scholar
  24. 24.
    Wiederrecht, G.P., Yoon, B.A., Wasielewski, M.R.: Photorefractivity in ferroelectric liquid crystal composites containing electron donor and acceptor molecules. Adv. Mater. 12, 1533–1536 (2000)CrossRefGoogle Scholar
  25. 25.
    Sasaki, T., Kino, Y., Shibata, M., Mizusaki, N., Katsuragi, A., Ishikawa, Y., Yoshimi, T.: Spontaneous polarization-vector-reorientation photorefractive effect in ferroelectric liquid crystals. Appl. Phys. Lett. 78, 4112–4114 (2001)CrossRefGoogle Scholar
  26. 26.
    Sasaki, T., Ohno, K., Nakazawa, Y.: Spontaneous polarization vector reorientation photorefractivity in mixtures of photoconductive polymer and ferroelectric liquid crystal. Macromolecules 35, 4317–4321 (2002)CrossRefGoogle Scholar
  27. 27.
    Sasaki, T., Katsuragi, A., Ohno, K.: Spontaneous polarization vector reorientation photorefractive effect in dye-doped ferroelectric liquid crystals. J. Phys. Chem. B 106, 2520–2525 (2002)CrossRefGoogle Scholar
  28. 28.
    Sasaki, T., Katsuragi, A., Mochizuki, O., Nakazawa, Y.: Influence of the properties of ferroelectric liquid crystals on the spontaneous polarization reorientation photorefractive effect. J. Phys. Chem. B 107, 7659–7665 (2003)CrossRefGoogle Scholar
  29. 29.
    Termine, R., Aiello, I., Dattilo, D., Ghedini, M., Golemme, A.: Photorefractive performance enhancement in polymer dispersions of nanosized crystalline domains. Adv. Mater. 15, 723–726 (2003)CrossRefGoogle Scholar
  30. 30.
    Talarico, M., Barberio, G., Pucci, D., Ghedini, M., Golemme, A.: Undoped photorefractive ferroelectric liquid crystal. Adv. Mater. 15, 1374–1377 (2003)CrossRefGoogle Scholar
  31. 31.
    Talarico, M., Termine, R., Barberio, G., Pucci, D., Ghedini, M., Golemme, A.: Measurement of the photorefractive space-charge field in a ferroelectric mesogen. Appl. Phys. Lett. 84, 1034–1036 (2004)CrossRefGoogle Scholar
  32. 32.
    Solymar, L., Webb, D.J., Grunnet-Jepsen, A.: The Physics and Applications of Photorefractive Materials. Clarendon, Oxford (1996)Google Scholar
  33. 33.
    Yeh, P.: Introduction to Photorefractive Nonlinear Optics. Wiley, New York (1993)Google Scholar
  34. 34.
    Günter, P. (ed.): Nonlinear Optical Effects and Materials (Chap. 4). Springer, Berlin (2000)Google Scholar
  35. 35.
    Sasaki, T., Mochizuki, O., Noborio, K., Nakazawa, Y.: Influence of the laser incidence conditions on the spontaneous polarization reorientation photorefractive effect of ferroelectric liquid crystals. J. Phys. Chem. B 108, 17083–17088 (2004)CrossRefGoogle Scholar
  36. 36.
    Agashkov, A.V., Kovalev, A.A., Serak, S.S., Parka, J.: Effect of optical nonlinearity dynamical enhancement in dye doped liquid crystal under an electrical field. Mol. Cryst. Liq. Cryst. 375, 269–280 (2002)CrossRefGoogle Scholar
  37. 37.
    Agashkov, A.V., Kovalev, A.A., Parka, J.: Dynamic photorefractivity in nematic liquid crystals panels with photoconducting polymeric layers. Opto-Electron. Rev. 12, 271–275 (2004)Google Scholar
  38. 38.
    Kesti, T., Golemme, A.: Photorefractive nematic liquid crystals with gain of constant sign under alternating voltage. Appl. Phys. Lett. 88, 011917 (2006)CrossRefGoogle Scholar
  39. 39.
    Sasaki, T., Mochizuki, O., Nakazawa, Y., Fukunaga, G., Nakamura, T., Noborio, K.: Formation of dynamic holograms based on spatial modulation of molecular motions of ferroelectric liquid crystals. Appl. Phys. Lett. 85, 1329–1331 (2004)CrossRefGoogle Scholar
  40. 40.
    Sasaki, T., Moriya, N., Iwasaki, Y.: Photorefractive effect of ferroelectric liquid crystals with an applied alternating electric field. J. Phys. Chem. C 111, 17646–17652 (2007)CrossRefGoogle Scholar
  41. 41.
    Moriya, N., Sasaki, T.: Photorefractive effect of ferroelectric liquid crystals with application of a biased alternating electric field. Mol. Cryst. Liq. Cryst. 482, 33–41 (2008)CrossRefGoogle Scholar
  42. 42.
    Crawford, G.P., Zumer, S. (eds.): Liquid Crystals in Complex Geometries. Taylor and Francis, London (1996)Google Scholar
  43. 43.
    Nakazawa, Y., Sasaki, T.: Photorefractive effect in composites of ferroelectric liquid crystal and photoconductive polymers. Liq. Cryst. 33, 159–165 (2006)CrossRefGoogle Scholar
  44. 44.
    Sasaki, T., Nakazawa, Y.: Photorefractive effect of polymer-stabilized ferroelectric liquid crystals. J. Phys. Chem. C 113, 5792–5798 (2009)CrossRefGoogle Scholar
  45. 45.
    Sasaki, T., Hazato, H., Katsuragi, A., Nakazawa, Y.: Photorefractive effect of photoconductive-polymer-stabilized ferroelectric liquid crystals. Mol. Cryst. Liq. Cryst. 503, 81–98 (2009)CrossRefGoogle Scholar
  46. 46.
    Sasaki, T., Miyazaki, D., Akaike, K., Ikegami, M., Naka, Y.: Photorefractive effect of photoconductive ferroelectric liquid crystalline mixtures composed of photoconductive chiral compounds and liquid crystals. J. Mater. Chem. 21, 8678–8686 (2011)CrossRefGoogle Scholar
  47. 47.
    Sasaki, T., Ikegami, M., Naka, Y.: Formation of dynamic hologram in photorefractive ferroelectric liquid crystals. J. Photopolym. Sci. Technol. 25, 681–684 (2012)CrossRefGoogle Scholar
  48. 48.
    Sasaki, T., Ikegami, M., Abe, T., Miyazaki, D., Kajikawa, S., Naka, Y.: Real-time dynamic hologram in photorefractive ferroelectric liquid crystal with two-beam coupling gain coefficient of over 800 cm–1 and response time of 8 ms. Appl. Phys. Lett. 102, 063306 (2013)CrossRefGoogle Scholar
  49. 49.
    Sasaki, T., Kajikawa, S., Naka, Y.: Dynamic amplification of light signals in photorefractive ferroelectric liquid crystalline mixtures. Farady Discuss. 174, 203–218 (2014)Google Scholar
  50. 50.
    Talarico, M., Termine, R., Prus, P., Barberio, G., Pucci, D., Ghedini, M., Golemme, A.: Photorefractive properties of undoped chiral smectic C phases of cyclopalladated complexes. Mol. Cryst. Liq. Cryst. 429, 65–76 (2005)CrossRefGoogle Scholar
  51. 51.
    Talarico, M., Pucci, D., Ghedini, M., Termine, R., Golemme, A.: Photorefractive effects in ferroelectric liquid crystals. Proc. SPIE 5936, 593606 (2005)CrossRefGoogle Scholar
  52. 52.
    Talarico, M., Golemme, A.: Optical control of orientational bistability in photorefractive liquid crystals. Nat. Mater. 5, 185–188 (2006)CrossRefGoogle Scholar
  53. 53.
    Talarico, M., Golemme, A.: Photorefractive binary system based on ferroelectric liquid crystals. J. Phys. Chem. C 111, 7834–7840 (2007)CrossRefGoogle Scholar
  54. 54.
    Talarico, M., Termine, R., Golemme, A.: Photorefractive organic material for optical thresholding. Appl. Phys. Lett. 91, 081110 (2007)CrossRefGoogle Scholar

Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.CNR-Nanotec, SS di RendeRendeItaly
  2. 2.Dipartimento di FisicaUniversità della CalabriaRendeItaly

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