Ultrathin optical switch based on a liquid crystal/silver nanoparticles mixture as a tunable indefinite medium (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Ultrathin optical switch based on a liquid crystal/silver nanoparticles mixture as a tunable indefinite medium (Articolo in rivista) (literal)

Anno

• 2011-01-01T00:00:00+01:00 (literal)

Alternative label

• Spinozzi, E.; Ciattoni, A. (2011)
  Ultrathin optical switch based on a liquid crystal/silver nanoparticles mixture as a tunable indefinite medium
  in Optical materials express
  (literal)

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

• Spinozzi, E.; Ciattoni, A. (literal)

Pagina inizio

• 732 (literal)

Pagina fine

• 741 (literal)

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

• 1 (literal)

Rivista

• Optical materials express (Rivista)

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

• 10 (literal)

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

• 4 (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• Sapienza University Rome; Consiglio Nazionale delle Ricerche (CNR) (literal)

Titolo

• Ultrathin optical switch based on a liquid crystal/silver nanoparticles mixture as a tunable indefinite medium (literal)

Abstract

• We predict that a liquid crystal/silver nanoparticles mixture can be designed so that its effective ordinary and extraordinary permittivities have, in a frequency range, real parts of different signs. We exploit this result to design an optical switch obtained by sandwiching a few hundred nanometers thick slab of the proposed mixture between two silica layers. By resorting to full-wave simulations, we show that, by varying the direction of an externally applied electric field, the transmissivity of the structure can be switched between 0.02 and 0.4 at a wavelength close to the frequency range where the medium is indefinite. The device functionality physically stems from the fact the orientation of the hyperbola characterizing extraordinary waves within the indefinite medium follows the applied electric field direction and therefore, if the hyperbola asymptote is nearly normal to the slab, full switch between evanescent and homogeneous propagating waves can be achieved within the medium. (C) 2011 Optical Society of America (literal)

Prodotto di

• Proprietà strutturali, elettroniche e vibrazionali di sistemi a forte correlazione elettronica (MD.P04.025.003) (Modulo)

Autore CNR

• ALESSANDRO CIATTONI (Unità di personale interno)

Incoming links:

Autore CNR di

• ALESSANDRO CIATTONI (Unità di personale interno)

Prodotto

• Proprietà strutturali, elettroniche e vibrazionali di sistemi a forte correlazione elettronica (MD.P04.025.003) (Modulo)

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

• Optical materials express (Rivista)