Characterization of the diffraction efficiency of new holographic gratings with a nematic film--polymer-slice sequence structure.

Autor: Caputo, Roberto, Veltri, Alessandro, Umeton, Cesare P., Sukhov, Andrey V.

Publikováno v: Journal of the Optical Society of America. B, Optical Physics; Nov2004, Vol. 21 Issue 11, p1939-1947, 9p, 1 Black and White Photograph, 3 Diagrams, 1 Chart, 57 Graphs

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Dynamical behaviour of holographic gratings with a nematic film --Polymer slice sequence structure

Autor: Volodymyr Tkachenko, Giancarlo Abbate, Roberto Caputo, Alessandro Veltri, Cesare Umeton, Antigone Marino, Francesco Vita

Publikováno v: The European Physical Journal E. 15:47-52

We have studied the dynamical response of a new kind of holographic grating to a pulsed electric field. The structure, named POLICRYPS, consists of a sequence of homogeneous polymer slices separated by liquid-crystal films. We have found that both th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1de3eb7187816bad6e12a7de2b3d7440
https://doi.org/10.1140/epje/i2004-10035-y

In situ optical control and stabilization of the curing process of holographic gratings with a nematic film-polymer-slice sequence structure

Autor: Antonio De Luca, Cesare Umeton, Roberto Caputo, Alessandro Veltri, A. V. Sukhov, Luciano De Sio

Publikováno v: Applied optics 45 (2006): 3721–3727.
info:cnr-pdr/source/autori:De Sio, L; Caputo, R; De Luca, A; Veltri, A; Umeton, C; Sukhov, AV/titolo:In situ optical control and stabilization of the curing process of holographic gratings with a nematic film-polymer-slice sequence structure/doi:/rivista:Applied optics/anno:2006/pagina_da:3721/pagina_a:3727/intervallo_pagine:3721–3727/volume:45

We report on the realization of what we believe to be a new holographic setup for the fabrication of polymer liquid-crystal polymer-slice diffraction gratings, which utilizes an optical-feedback-driven nanopositioning technique. We have increased the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8732a0250f20cf084615b1acca0d58c9
https://publications.cnr.it/doc/12

Model for two-beam coupling during the formation of holographic gratings with a nematic film-polymer-slice sequence structure

Autor: Alessandro Veltri, A. V. Sukhov, Roberto Caputo, Luciano De Sio, Cesare Umeton

Publikováno v: Applied Physics Letters. 87:141108

We present a model accounting for the main features of the wave coupling process that takes place during the UV curing of diffraction gratings made of liquid crystal films separated by slices of polymeric material. The effect depends on the phase shi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41adf1cf495fa3901a8ec90b9e4c666d
https://doi.org/10.1063/1.2048821