Fast Electro-Optical Switching and High Contrast Ratio in epoxy-based Polymer Dispersed Liquid Crystals (Articolo in rivista)

Type
Label
  • Fast Electro-Optical Switching and High Contrast Ratio in epoxy-based Polymer Dispersed Liquid Crystals (Articolo in rivista) (literal)
Anno
  • 2003-01-01T00:00:00+01:00 (literal)
Alternative label
  • L. Petti, P. Mormile, W. Blau (2003)
    Fast Electro-Optical Switching and High Contrast Ratio in epoxy-based Polymer Dispersed Liquid Crystals
    in Optics and lasers in engineering
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • L. Petti, P. Mormile, W. Blau (literal)
Pagina inizio
  • 369 (literal)
Pagina fine
  • 377 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 39 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto di Cibernetica del CNR, Italy; Physics Department, Trinity College, Dublin 2, Ireland (literal)
Titolo
  • Fast Electro-Optical Switching and High Contrast Ratio in epoxy-based Polymer Dispersed Liquid Crystals (literal)
Abstract
  • We report the observation of an electro-optical switching effect from an opaque to a transparent state occurring at a threshold value of the applied field in a Polymer Dispersed Liquid Crystal (PDLC). Optical responses of the composite film under the conditions of an externally applied ac electric field (2-5 Vp-p /ƒÝ) and a film thickness (50ƒÝm), were determined using an Argon laser (wavelength 514 nm). The experimental results showed promising switching times with a rise time of 190 ƒÝsec and a decay time of 2 msec and an exceptionally high contrast ratio up to 410. These results demonstrate the validity of employing this new PDLC in electro-optical devices. (literal)
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