Inscription of local surface relief gratings with a Scanning Near-field Optical Microscope on an azo-polymer film
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Polímeros (São Carlos. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282006000400012 |
Resumo: | A Scanning Near-field Optical Microscope (SNOM) was used to inscribe locally limited Surface Relief Gratings (SRGs) on pDR1M, which is an azo-polymer film. The influence of parameters such as the line scanning time and the line spacing on the amplitude and the period of the gratings is discussed. SRGs have been used to orient Liquid Crystals (LCs), where the LC alignment takes place due to the elastic distortions of the nematic medium close to the surface. In addition, the photoalignment of the azo-chromophores was also used to induce LC alignment. In this work we investigate the use of local SGRs together with the photoalignment to get a local control of the LC alignment properties. The advantage of this method is that it is reversible and the gratings can easily be erased. |
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Polímeros (São Carlos. Online) |
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Inscription of local surface relief gratings with a Scanning Near-field Optical Microscope on an azo-polymer filmAzo-polymersurface relief gratingsSNOMliquid crystalA Scanning Near-field Optical Microscope (SNOM) was used to inscribe locally limited Surface Relief Gratings (SRGs) on pDR1M, which is an azo-polymer film. The influence of parameters such as the line scanning time and the line spacing on the amplitude and the period of the gratings is discussed. SRGs have been used to orient Liquid Crystals (LCs), where the LC alignment takes place due to the elastic distortions of the nematic medium close to the surface. In addition, the photoalignment of the azo-chromophores was also used to induce LC alignment. In this work we investigate the use of local SGRs together with the photoalignment to get a local control of the LC alignment properties. The advantage of this method is that it is reversible and the gratings can easily be erased.Associação Brasileira de Polímeros2006-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282006000400012Polímeros v.16 n.4 2006reponame:Polímeros (São Carlos. Online)instname:Associação Brasileira de Polímeros (ABPol)instacron:ABPO10.1590/S0104-14282006000400012info:eu-repo/semantics/openAccessBechtold,Ivan H.Stiller,BurkhardBrehmer,LudwigOliveira,Elisabeth A. deeng2007-03-27T00:00:00Zoai:scielo:S0104-14282006000400012Revistahttp://www.scielo.br/pohttps://old.scielo.br/oai/scielo-oai.php||revista@abpol.org.br1678-51690104-1428opendoar:2007-03-27T00:00Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol)false |
dc.title.none.fl_str_mv |
Inscription of local surface relief gratings with a Scanning Near-field Optical Microscope on an azo-polymer film |
title |
Inscription of local surface relief gratings with a Scanning Near-field Optical Microscope on an azo-polymer film |
spellingShingle |
Inscription of local surface relief gratings with a Scanning Near-field Optical Microscope on an azo-polymer film Bechtold,Ivan H. Azo-polymer surface relief gratings SNOM liquid crystal |
title_short |
Inscription of local surface relief gratings with a Scanning Near-field Optical Microscope on an azo-polymer film |
title_full |
Inscription of local surface relief gratings with a Scanning Near-field Optical Microscope on an azo-polymer film |
title_fullStr |
Inscription of local surface relief gratings with a Scanning Near-field Optical Microscope on an azo-polymer film |
title_full_unstemmed |
Inscription of local surface relief gratings with a Scanning Near-field Optical Microscope on an azo-polymer film |
title_sort |
Inscription of local surface relief gratings with a Scanning Near-field Optical Microscope on an azo-polymer film |
author |
Bechtold,Ivan H. |
author_facet |
Bechtold,Ivan H. Stiller,Burkhard Brehmer,Ludwig Oliveira,Elisabeth A. de |
author_role |
author |
author2 |
Stiller,Burkhard Brehmer,Ludwig Oliveira,Elisabeth A. de |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Bechtold,Ivan H. Stiller,Burkhard Brehmer,Ludwig Oliveira,Elisabeth A. de |
dc.subject.por.fl_str_mv |
Azo-polymer surface relief gratings SNOM liquid crystal |
topic |
Azo-polymer surface relief gratings SNOM liquid crystal |
description |
A Scanning Near-field Optical Microscope (SNOM) was used to inscribe locally limited Surface Relief Gratings (SRGs) on pDR1M, which is an azo-polymer film. The influence of parameters such as the line scanning time and the line spacing on the amplitude and the period of the gratings is discussed. SRGs have been used to orient Liquid Crystals (LCs), where the LC alignment takes place due to the elastic distortions of the nematic medium close to the surface. In addition, the photoalignment of the azo-chromophores was also used to induce LC alignment. In this work we investigate the use of local SGRs together with the photoalignment to get a local control of the LC alignment properties. The advantage of this method is that it is reversible and the gratings can easily be erased. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282006000400012 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282006000400012 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-14282006000400012 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Polímeros |
publisher.none.fl_str_mv |
Associação Brasileira de Polímeros |
dc.source.none.fl_str_mv |
Polímeros v.16 n.4 2006 reponame:Polímeros (São Carlos. Online) instname:Associação Brasileira de Polímeros (ABPol) instacron:ABPO |
instname_str |
Associação Brasileira de Polímeros (ABPol) |
instacron_str |
ABPO |
institution |
ABPO |
reponame_str |
Polímeros (São Carlos. Online) |
collection |
Polímeros (São Carlos. Online) |
repository.name.fl_str_mv |
Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol) |
repository.mail.fl_str_mv |
||revista@abpol.org.br |
_version_ |
1754212584773386240 |