http://www.cnr.it/ontology/cnr/individuo/prodotto/ID183989
Highly efficient liquid crystal based diffraction grating induced by polarization holography at the aligning surface (Articolo in rivista)
- Type
- Label
- Highly efficient liquid crystal based diffraction grating induced by polarization holography at the aligning surface (Articolo in rivista) (literal)
- Anno
- 2006-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1063/1.2355456 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- C. Provenzano; P. Pagliusi;G. Cipparronea (literal)
- Pagina inizio
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Dipartimento di Fisica, Università della Calabria
IPCF-CNR, Unità di Cosenza (literal)
- Titolo
- Highly efficient liquid crystal based diffraction grating induced by polarization holography at the aligning surface (literal)
- Abstract
- Low-scattering and highly efficient orientational gratings are obtained, exploiting polarization holography to modulate the in-plane anchoring axis at both surfaces of a planar nematic cell. Polarization-sensitive azo-dye-doped polyimide films are used as aligning layers. For proper values of cell thickness and spatial periodicity of the gratings, the director configuration in the nematic bulk is a perfect replica of the polarization gratings recorded on the aligning layers. High first-order diffraction efficiency, up to 98%, is observed in thin grating regime. External ac voltage allows to adjust the efficiency over the whole range for arbitrary cell thickness. (literal)
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