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All-optical switching of holographic gratings made of polymer-liquid-crystal-polymer slices containing azo-compounds (Articolo in rivista)
- Type
- Label
- All-optical switching of holographic gratings made of polymer-liquid-crystal-polymer slices containing azo-compounds (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Alternative label
De Sio, L; Veltri, A; Umeton, C; Serak, S; Tabiryan, N (2008)
All-optical switching of holographic gratings made of polymer-liquid-crystal-polymer slices containing azo-compounds
in Applied physics letters
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- De Sio, L; Veltri, A; Umeton, C; Serak, S; Tabiryan, N (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- \"[De Sio, Luciano; Veltri, Alessandro; Umeton, Cesare] Univ Calabria, LICRYL, Natl Inst Phys Matter, INFM CNR,Ctr Excellence CEMIF CAL, I-87036 Cosenza, Italy; [De Sio, Luciano; Veltri, Alessandro; Umeton, Cesare] Univ Calabria, Dept Phys, I-87036 Cosenza, Italy; [Serak, Svetlana; Tabiryan, Nelson] Beam Engn Adv Measurements Co, Winter Pk, FL USA (literal)
- Titolo
- All-optical switching of holographic gratings made of polymer-liquid-crystal-polymer slices containing azo-compounds (literal)
- Abstract
- We present the observation of an all-optical switching effect that takes place when a light beam of suitable wavelength irradiates a 'layered' structure made of polymer slices alternated to films of well aligned liquid crystal (LC) which contain also a small percentage of azo-LC molecules. The simple and reliable fabrication procedure exploits a holographic UV curing technique. The observed switching effect takes place in samples that exhibit diffraction efficiency as high as 85% and is induced in less than 0.5 s by an unfocused pump beam of 245 mW/cm(2) power density. (literal)
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