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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todo:paper_09253467_v47_n_p72_Cambiasso2023-10-03T15:46:09Z Holographic gratings recorded in poly(lactic acid)/azo-dye films Cambiasso, J. Goyanes, S. Ledesma, S. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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 Cambiasso, J. Goyanes, S. Ledesma, S. 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. |
format |
JOUR |
author |
Cambiasso, J. Goyanes, S. Ledesma, S. |
author_facet |
Cambiasso, J. Goyanes, S. Ledesma, S. |
author_sort |
Cambiasso, J. |
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 |
url |
http://hdl.handle.net/20.500.12110/paper_09253467_v47_n_p72_Cambiasso |
work_keys_str_mv |
AT cambiassoj holographicgratingsrecordedinpolylacticacidazodyefilms AT goyaness holographicgratingsrecordedinpolylacticacidazodyefilms AT ledesmas holographicgratingsrecordedinpolylacticacidazodyefilms |
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1782026850141208576 |