http://www.cnr.it/ontology/cnr/individuo/prodotto/ID3454

Surface-induced photorefractivity in twistable nematics: toward the all-optical control of gain (Articolo in rivista)

Type

Label

Surface-induced photorefractivity in twistable nematics: toward the all-optical control of gain (Articolo in rivista) (literal)

Anno

Alternative label

Pagliusi, P; Provenzano, C; Cipparrone, G (2008)
Surface-induced photorefractivity in twistable nematics: toward the all-optical control of gain
in Optics express
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Pagina inizio

Pagina fine

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

Rivista

Note

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

\"[Pagliusi, P.] Univ Calabria, Lab Reg, INFM, LICRYL,CNR, I-87036 Arcavacata Di Rende, CS, Italy; Univ Calabria, Dept Phys, CEMIF CAL, I-87036 Arcavacata Di Rende, CS, Italy (literal)

Titolo

Surface-induced photorefractivity in twistable nematics: toward the all-optical control of gain (literal)

Abstract

We report the first two-beam coupling investigation of the surface-induced photorefractive effect (SIPRE) in optically twistable nematic liquid crystal cell. The unique space-charge field of SIPRE is exploited to achieve optical tuning of the photorefractive gain. A reconfigurable photoaligning substrate is used to adjust the twist angle, which is proved to be a control parameter for the photorefractive gain. The amplitude of the optical modulation increases gradually with the twist. Its phase shift changes from 0 to 90 with the polarization state of the two interfering beams. These results pave the way to the all-optical control of the photorefractive gain. (literal)

Prodotto di