All-optical switching of holographic gratings made of polymer-liquid- crystal-polymer slices containing azo-compounds

Luciano De Sio; Alessandro Veltri; Cesare Umeton; Svetlana Serak; Nelson Tabiryan

doi:10.1063/1.3021388

All-optical switching of holographic gratings made of polymer-liquid- crystal-polymer slices containing azo-compounds

Luciano De Sio, Alessandro Veltri, Cesare Umeton, Svetlana Serak, Nelson Tabiryan

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

45 Citas (Scopus)

Resumen

We present the observation of an all-optical switching effect that takes place when a light beam of suitable wavelength irradiates a "layered" structure made of polymer slices alternated to films of well aligned liquid crystal (LC) which contain also a small percentage of azo-LC molecules. The simple and reliable fabrication procedure exploits a holographic UV curing technique. The observed switching effect takes place in samples that exhibit diffraction efficiency as high as 85% and is induced in less than 0.5 s by an unfocused pump beam of 245 mW/ cm2 power density. ; 2008 American Institute of Physics.

Idioma original	Inglés
Número de artículo	181115
Publicación	Applied Physics Letters
Volumen	93
N.º	18
DOI	https://doi.org/10.1063/1.3021388
Estado	Publicada - 2008
Publicado de forma externa	Sí

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abstract = "We present the observation of an all-optical switching effect that takes place when a light beam of suitable wavelength irradiates a {"}layered{"} structure made of polymer slices alternated to films of well aligned liquid crystal (LC) which contain also a small percentage of azo-LC molecules. The simple and reliable fabrication procedure exploits a holographic UV curing technique. The observed switching effect takes place in samples that exhibit diffraction efficiency as high as 85% and is induced in less than 0.5 s by an unfocused pump beam of 245 mW/ cm2 power density. ; 2008 American Institute of Physics.",

author = "{De Sio}, Luciano and Alessandro Veltri and Cesare Umeton and Svetlana Serak and Nelson Tabiryan",

note = "Funding Information: This research has been supported by the Air Force Office of Scientific Research, Air Force Material Command, U.S. Air Force, under Grant No. FA8655-07-1-3046.",

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T1 - All-optical switching of holographic gratings made of polymer-liquid- crystal-polymer slices containing azo-compounds

AU - De Sio, Luciano

AU - Veltri, Alessandro

AU - Umeton, Cesare

AU - Serak, Svetlana

AU - Tabiryan, Nelson

N1 - Funding Information: This research has been supported by the Air Force Office of Scientific Research, Air Force Material Command, U.S. Air Force, under Grant No. FA8655-07-1-3046.

PY - 2008

Y1 - 2008

N2 - We present the observation of an all-optical switching effect that takes place when a light beam of suitable wavelength irradiates a "layered" structure made of polymer slices alternated to films of well aligned liquid crystal (LC) which contain also a small percentage of azo-LC molecules. The simple and reliable fabrication procedure exploits a holographic UV curing technique. The observed switching effect takes place in samples that exhibit diffraction efficiency as high as 85% and is induced in less than 0.5 s by an unfocused pump beam of 245 mW/ cm2 power density. ; 2008 American Institute of Physics.

AB - We present the observation of an all-optical switching effect that takes place when a light beam of suitable wavelength irradiates a "layered" structure made of polymer slices alternated to films of well aligned liquid crystal (LC) which contain also a small percentage of azo-LC molecules. The simple and reliable fabrication procedure exploits a holographic UV curing technique. The observed switching effect takes place in samples that exhibit diffraction efficiency as high as 85% and is induced in less than 0.5 s by an unfocused pump beam of 245 mW/ cm2 power density. ; 2008 American Institute of Physics.

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All-optical switching of holographic gratings made of polymer-liquid- crystal-polymer slices containing azo-compounds

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