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http://yadda.icm.edu.pl:80/baztech/element/bwmeta1.element.baztech-article-BWA0-0002-0004

Czasopismo

Opto - Electronics Review

Tytuł artykułu

Nematic liquid crystal waveguide arrays

Autorzy Brzdąkiewicz, K. A.  Karpierz, M. A.  Fratalocchi, A.  Assanto, G.  Nowinowski-Kruszelnicki, E. 
Treść / Zawartość http://www.wat.edu.pl/review/optor/contents.htm http://journals.pan.pl/dlibra/journal/opelre
Warianty tytułu
Konferencja International Workshop on Nonlinear Optics Applications ; (7 ; 17-20.06.2004 ; Konstancin, Poland)
Języki publikacji EN
Abstrakty
EN We investigate linear and nonlinear light propagation in a voltage-tunable array of waveguide channels in undoped nematic liquid crystals. This novel geometry, based on a photonic structure with a periodic modulation of refractive index controlled by an electric field, offers a wealth of possibilities for the study of discrete optical phenomena. The structure, in conjunction with a giant, non-resonant and voltage-dependent reorientational nonlinearity, allows us to drive the system from bulk diffraction to discrete propagation. Theoretical and experimental investigations, carried out with near infrared light wavelength and powers of a few milliWatts, show the possibility of transverse light localization, resulting in discrete spatial solitons. Such array, with its voltage- and light-adjustable guided-wave confinement and coupling, exhibits potentials for the realization of multifunctional routers and all-optical signal processors with nematic liquid crystals.
Słowa kluczowe
EN nonlinear optics   solitons   self-action effects   optical nonlinearity in liquid crystals   discrete diffraction  
Wydawca Stowarzyszenie Elektryków Polskich
Polska Akademia Nauk
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Czasopismo Opto - Electronics Review
Rocznik 2005
Tom Vol. 13, No. 2
Strony 107--122
Opis fizyczny Bibliogr. 23 poz., rys., wykr.
Twórcy
autor Brzdąkiewicz, K. A.
  • Faculty of Physics, Warsaw University of Technology, 75 Koszykowa Str., 00-662 Warsaw, Poland, kasia@if.pw.edu.pl
autor Karpierz, M. A.
  • Faculty of Physics, Warsaw University of Technology, 75 Koszykowa Str., 00-662 Warsaw, Poland
autor Fratalocchi, A.
  • NooEL-Nonlinear Optics and Optoelectronics Laboratory, University “Roma Tre”, Via della Vasca Navale 84, 00-146 Rome, Italy
autor Assanto, G.
  • NooEL-Nonlinear Optics and Optoelectronics Laboratory, University “Roma Tre”, Via della Vasca Navale 84, 00-146 Rome, Italy
autor Nowinowski-Kruszelnicki, E.
  • Institute of Applied Physics, Military University of Technology, 2 Kaliskiego Str., 00-908 Warsaw, Poland
Bibliografia
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