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Optical Modulation of the Diffraction Efficiency in an Indoline Azobenzene/Amorphous Polycarbonate Film
We have made a diffraction grating in an indoline azobenzene/amorphous polycarbonate film by two-beam interference at 532 nm that periodically photodegrades the indoline azobenzene dye. Subsequent illumination of the film with 532-nm light into the trans-isomer band leads to trans-cis isomerization...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer US
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4945520/ https://www.ncbi.nlm.nih.gov/pubmed/27416904 http://dx.doi.org/10.1186/s11671-016-1542-2 |
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author | Williams, G. V. M. Do, My T. T. Middleton, A. Raymond, S. G. Bhuiyan, M. D. H. Kay, A. J. |
author_facet | Williams, G. V. M. Do, My T. T. Middleton, A. Raymond, S. G. Bhuiyan, M. D. H. Kay, A. J. |
author_sort | Williams, G. V. M. |
collection | PubMed |
description | We have made a diffraction grating in an indoline azobenzene/amorphous polycarbonate film by two-beam interference at 532 nm that periodically photodegrades the indoline azobenzene dye. Subsequent illumination of the film with 532-nm light into the trans-isomer band leads to trans-cis isomerization in the indoline azobenzene dye and results in a decrease in the trans-isomer band absorption coefficient. This causes the diffraction efficiency to decrease when probed at 655 nm. The diffraction efficiency returns to its original value when the 532-nm light is blocked by thermal relaxation from the indoline azobenzene cis-isomer to the trans-isomer. Thus, we have been able to optically modulate the diffraction efficiency in a thin film diffraction grating. |
format | Online Article Text |
id | pubmed-4945520 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
spelling | pubmed-49455202016-07-26 Optical Modulation of the Diffraction Efficiency in an Indoline Azobenzene/Amorphous Polycarbonate Film Williams, G. V. M. Do, My T. T. Middleton, A. Raymond, S. G. Bhuiyan, M. D. H. Kay, A. J. Nanoscale Res Lett Nano Express We have made a diffraction grating in an indoline azobenzene/amorphous polycarbonate film by two-beam interference at 532 nm that periodically photodegrades the indoline azobenzene dye. Subsequent illumination of the film with 532-nm light into the trans-isomer band leads to trans-cis isomerization in the indoline azobenzene dye and results in a decrease in the trans-isomer band absorption coefficient. This causes the diffraction efficiency to decrease when probed at 655 nm. The diffraction efficiency returns to its original value when the 532-nm light is blocked by thermal relaxation from the indoline azobenzene cis-isomer to the trans-isomer. Thus, we have been able to optically modulate the diffraction efficiency in a thin film diffraction grating. Springer US 2016-07-15 /pmc/articles/PMC4945520/ /pubmed/27416904 http://dx.doi.org/10.1186/s11671-016-1542-2 Text en © The Author(s). 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Nano Express Williams, G. V. M. Do, My T. T. Middleton, A. Raymond, S. G. Bhuiyan, M. D. H. Kay, A. J. Optical Modulation of the Diffraction Efficiency in an Indoline Azobenzene/Amorphous Polycarbonate Film |
title | Optical Modulation of the Diffraction Efficiency in an Indoline Azobenzene/Amorphous Polycarbonate Film |
title_full | Optical Modulation of the Diffraction Efficiency in an Indoline Azobenzene/Amorphous Polycarbonate Film |
title_fullStr | Optical Modulation of the Diffraction Efficiency in an Indoline Azobenzene/Amorphous Polycarbonate Film |
title_full_unstemmed | Optical Modulation of the Diffraction Efficiency in an Indoline Azobenzene/Amorphous Polycarbonate Film |
title_short | Optical Modulation of the Diffraction Efficiency in an Indoline Azobenzene/Amorphous Polycarbonate Film |
title_sort | optical modulation of the diffraction efficiency in an indoline azobenzene/amorphous polycarbonate film |
topic | Nano Express |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4945520/ https://www.ncbi.nlm.nih.gov/pubmed/27416904 http://dx.doi.org/10.1186/s11671-016-1542-2 |
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