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Polymer Dispersed Liquid Crystals as Optical Storage Materials

  • F. Simoni (a1), S. Di Bella (a1), L. Lucchetti (a1), G. Cipparrone (a2) and A. Mazzulla (a2)...

Abstract

Among the different methods used to prepare Polymer Dispersed Liquid Crystals (PDLC), the Polymerisation Induced Phase Separation technique (PIPS) can be exploited to obtain optical recording in these materials. The possibility of performing optical storage of binary images in PDLC during the curing process and post curing holographic recording, will be described and discussed.

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1 Simoni, F., Nonlinear Optical Properties of Liquid Crystals and Polymer Dispersed Liquid Crystals, (World Scientific, Singapore, 1997), p. 176.
2 Bella, S. Di, Lucchetti, L., Simoni, F., Mol. Cryst. Liq. Cryst. 320 139 (1998).
3 Bella, S. Di, Lucchetti, L., Simoni, F., Mol. Cryst. Liq. Cryst. in press.
4 see for example:Natarajan, L.V., Sutherland, R.L., Tondiglia, V.P., Bunning, T.J., Adams, W.W., Nonlinear, J. Opt. Phys. Mater. 5 89 (1996) and R.L. Sutherland, L.V. Natarajan, Liquid Crystals 7 1 (1997).
5 Cipparrone, G., Mazzulla, A. and Simoni, F., Mol. Cryst. Liq. Cryst. 299 329 (1997) G. Cipparrone, A. Mazzulla, F.P. Nicoletta, L. Lucchetti and F. Simoni, Opt. Comm. 150 297 (1998) and G. Cipparrone, A. Mazzulla and F. Simoni, Optics Letters 23 1505 (1998).
6 Moerner, W.F. and Silence, S.M., Chem. Rev. 94 127 (1994); W.E. Moerner, A. Grunnet Jepsen, C.L. Thompson, Annual Review of materials Science 27 585 (1997).
7 Sutter, K. and Gunter, P., J. Opt. Soc. Am. B 7 2274 (1990)

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