[en] Local and nonlocal models for the diffusion of photopolymers are applied to the dynamic formation of transmission gratings recorded in photopolymers and holographic polymer-dispersed liquid crystals (H-PDLCs). We retrieve the main parameters of H-PDLCs (refractive-index modulation and diffusion coefficient) by combining a solution of the one-dimensional diffusion equation and the rigorous coupled-wave theory applied to transmission gratings. The rigorous coupled-wave theory method provides us with information on higher harmonics of the refractive profile (not only on the first harmonic as when the classical Kogelnik theory is applied). Measurements concerning the second harmonic validate the modeling. (C) 2004 Optical Society of America.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Massenot, S.; Ecole Nationale Supérieure des Télécommunications de Bretagne - Brest > Optics Dpt
Kaiser, Jean Luc; Ecole Nationale Supérieure des Télécommunications de Bretagne - Brest > Optics Dpt
Chevallier, Raymond; Ecole Nationale Supérieure des Télécommunications de Bretagne - Brest - France > Optics Dpt
Renotte, Yvon ; Université de Liège - ULiège > Département de physique > Département de physique
Language :
English
Title :
Study of the dynamic formation of transmission gratings recorded in photopolymers and holographic polymer-dispersed liquid crystals
Publication date :
10 October 2004
Journal title :
Applied Optics
ISSN :
0003-6935
Publisher :
Optical Soc Amer, Washington, United States - Washington
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