Holographic gratings recorded in poly(lactic acid)/azo-dye films

Diffraction gratings were recorded in biodegradable polymer films of poly(lactic acid) doped with the photoisomerisable azo-dye (Disperse Orange 3). It is shown that the diffraction efficiency of the recorded grating can be improved by 220% via an all-optical treatment. This all-optical treatment co...

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Autores principales:	Goyanes, Silvia Nair, Ledesma, Silvia Adriana
Publicado:	2015
Materias:	Azobenzene Diffraction gratings Efficiency enhancement Azo dyes Biodegradable polymers Carbon Diffraction Diffraction efficiency Efficiency Irradiation Lactic acid Laser beams Multiwalled carbon nanotubes (MWCN) Nanocomposites Polymer films Yarn All optical High power Photo-responsive Photo-responsive polymer Poly lactic acid Preirradiation Short periods
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09253467_v47_n_p72_Cambiasso http://hdl.handle.net/20.500.12110/paper_09253467_v47_n_p72_Cambiasso
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_09253467_v47_n_p72_Cambiasso
record_format	dspace
spelling	paper:paper_09253467_v47_n_p72_Cambiasso2023-06-08T15:51:13Z Holographic gratings recorded in poly(lactic acid)/azo-dye films Goyanes, Silvia Nair Ledesma, Silvia Adriana Azobenzene Diffraction gratings Efficiency enhancement Azo dyes Azobenzene Biodegradable polymers Carbon Diffraction Diffraction efficiency Efficiency Irradiation Lactic acid Laser beams Multiwalled carbon nanotubes (MWCN) Nanocomposites Polymer films Yarn All optical Efficiency enhancement High power Photo-responsive Photo-responsive polymer Poly lactic acid Preirradiation Short periods Diffraction gratings Diffraction gratings were recorded in biodegradable polymer films of poly(lactic acid) doped with the photoisomerisable azo-dye (Disperse Orange 3). It is shown that the diffraction efficiency of the recorded grating can be improved by 220% via an all-optical treatment. This all-optical treatment consists of a pre-irradiation of the sample with the writing laser beam at high power during a short period of time, preventing damage of the material, followed by a much longer inscription at relatively low power. Furthermore, it is shown that the addition of a small amount of 0.05 wt% of multi-walled carbon nanotubes to the photoresponsive polymer increases the maximum diffraction efficiency as well as the remanent efficiency by 20%. Finally, this last photoresponsive nano-composite is also sensitive to the pre-irradiation treatment. © 2015 Elsevier B.V. All rights reserved. Fil:Goyanes, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ledesma, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09253467_v47_n_p72_Cambiasso http://hdl.handle.net/20.500.12110/paper_09253467_v47_n_p72_Cambiasso
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Azobenzene Diffraction gratings Efficiency enhancement Azo dyes Azobenzene Biodegradable polymers Carbon Diffraction Diffraction efficiency Efficiency Irradiation Lactic acid Laser beams Multiwalled carbon nanotubes (MWCN) Nanocomposites Polymer films Yarn All optical Efficiency enhancement High power Photo-responsive Photo-responsive polymer Poly lactic acid Preirradiation Short periods Diffraction gratings
spellingShingle	Azobenzene Diffraction gratings Efficiency enhancement Azo dyes Azobenzene Biodegradable polymers Carbon Diffraction Diffraction efficiency Efficiency Irradiation Lactic acid Laser beams Multiwalled carbon nanotubes (MWCN) Nanocomposites Polymer films Yarn All optical Efficiency enhancement High power Photo-responsive Photo-responsive polymer Poly lactic acid Preirradiation Short periods Diffraction gratings Goyanes, Silvia Nair Ledesma, Silvia Adriana Holographic gratings recorded in poly(lactic acid)/azo-dye films
topic_facet	Azobenzene Diffraction gratings Efficiency enhancement Azo dyes Azobenzene Biodegradable polymers Carbon Diffraction Diffraction efficiency Efficiency Irradiation Lactic acid Laser beams Multiwalled carbon nanotubes (MWCN) Nanocomposites Polymer films Yarn All optical Efficiency enhancement High power Photo-responsive Photo-responsive polymer Poly lactic acid Preirradiation Short periods Diffraction gratings
description	Diffraction gratings were recorded in biodegradable polymer films of poly(lactic acid) doped with the photoisomerisable azo-dye (Disperse Orange 3). It is shown that the diffraction efficiency of the recorded grating can be improved by 220% via an all-optical treatment. This all-optical treatment consists of a pre-irradiation of the sample with the writing laser beam at high power during a short period of time, preventing damage of the material, followed by a much longer inscription at relatively low power. Furthermore, it is shown that the addition of a small amount of 0.05 wt% of multi-walled carbon nanotubes to the photoresponsive polymer increases the maximum diffraction efficiency as well as the remanent efficiency by 20%. Finally, this last photoresponsive nano-composite is also sensitive to the pre-irradiation treatment. © 2015 Elsevier B.V. All rights reserved.
author	Goyanes, Silvia Nair Ledesma, Silvia Adriana
author_facet	Goyanes, Silvia Nair Ledesma, Silvia Adriana
author_sort	Goyanes, Silvia Nair
title	Holographic gratings recorded in poly(lactic acid)/azo-dye films
title_short	Holographic gratings recorded in poly(lactic acid)/azo-dye films
title_full	Holographic gratings recorded in poly(lactic acid)/azo-dye films
title_fullStr	Holographic gratings recorded in poly(lactic acid)/azo-dye films
title_full_unstemmed	Holographic gratings recorded in poly(lactic acid)/azo-dye films
title_sort	holographic gratings recorded in poly(lactic acid)/azo-dye films
publishDate	2015
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09253467_v47_n_p72_Cambiasso http://hdl.handle.net/20.500.12110/paper_09253467_v47_n_p72_Cambiasso
work_keys_str_mv	AT goyanessilvianair holographicgratingsrecordedinpolylacticacidazodyefilms AT ledesmasilviaadriana holographicgratingsrecordedinpolylacticacidazodyefilms
_version_	1768546075351711744

Holographic gratings recorded in poly(lactic acid)/azo-dye films

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