http://www.cnr.it/ontology/cnr/individuo/prodotto/ID186867
Observation of tunable optical filtering in photosensitive composite structures containing liquid crystals (Articolo in rivista)
- Type
- Label
- Observation of tunable optical filtering in photosensitive composite structures containing liquid crystals (Articolo in rivista) (literal)
- Anno
- 2011-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1364/OL.36.004755 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- G. Gilardi; L. De Sio; R. Beccherelli; R. Asquini; A. d'Alessandro; C. Umeton (literal)
- Pagina inizio
- Pagina fine
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- http://www.opticsinfobase.org/ol/abstract.cfm?uri=ol-36-24-4755 (literal)
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- Rivista
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- Note
- ISI Web of Science (WOS) (literal)
- Scopu (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1 Dipartimento di Ingegneria dell'Informazione, Elettronica e Telecomunicazioni, Sapienza Università di Roma, via Eudossiana 18, 00184 Rome, Italy
2 Consiglio Nazionale delle Ricerche--Istituto per la Microelettronica e Microsistemi (CNR--IMM), 00133 Rome, Italy
3 LICRYL (Liquid Crystals Laboratory, Institute for Chemical Physics Processes--CNR), Centre of Excellence for the Study of Innovative Functional Materials and Department of Physics, University of Calabria, 87036 Arcavacata di Rende, Italy (literal)
- Titolo
- Observation of tunable optical filtering in photosensitive composite structures containing liquid crystals (literal)
- Abstract
- We report on the investigation and characterization of an optically tunable filtering effect, observed in a waveguide grating made of alternated strips of photocurable polymer and a mixture of azo-dye-doped liquid crystal. The grating is sandwiched between two borosilicate glasses, one of which includes an ion-exchanged channel waveguide, which confines the optical signal to be filtered. Exposure to a low power visible light beam modifies the azo- dye molecular configuration, thus allowing the filtered wavelength to be tuned over a 6.6 nm range. Simulations of the filtering response are well described with our experimental findings. (literal)
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