Efficiency dynamics of diffraction gratings recorded in liquid crystalline composite materials by a UV interference pattern

被引:30
作者
Caputo, R
Sukhov, AV
Tabiryan, NV
Umeton, C [1 ]
机构
[1] Univ Calabria, Ist Nazl Fis Mat, Unita Cosenza, I-87036 Arcavacata Di Rende, CS, Italy
[2] Univ Calabria, Dipartimento Fis, I-87036 Arcavacata Di Rende, CS, Italy
[3] Russian Acad Sci, Inst Problems Mech, Moscow 117526, Russia
[4] Beam Engn Adv Measurements Corp, Oviedo, FL 32765 USA
关键词
D O I
10.1016/S0301-0104(99)00147-0
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We have carried out an experimental and theoretical study of the efficiency of diffraction gratings recorded in samples of polymer dispersed liquid crystal pre-syrups by an interference pattern of curing UV light. The theoretical model takes into account the diffusion of excited monomers during the UV curing and the circumstance that the diffusion coefficient is strongly affected by the polymerisation process. The theoretical curves perfectly fit the experimental results and confirm the validity of our model. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:463 / 471
页数:9
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