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Optical gating with organic building blocks. A quantitative model for the fluorescence modulation of photochromic perylene bisimide dithienylcyclopentene triads
We investigated the capability of molecular triads, consisting of two strong fluorophores that were covalently linked to a photochromic molecule, for optical gating. Therefore we monitored the fluorescence intensity of the fluorophores as a function of the isomeric state of the photoswitch. From the...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3949285/ https://www.ncbi.nlm.nih.gov/pubmed/24614963 http://dx.doi.org/10.1038/srep04316 |
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author | Pärs, Martti Gradmann, Michael Gräf, Katja Bauer, Peter Thelakkat, Mukundan Köhler, Jürgen |
author_facet | Pärs, Martti Gradmann, Michael Gräf, Katja Bauer, Peter Thelakkat, Mukundan Köhler, Jürgen |
author_sort | Pärs, Martti |
collection | PubMed |
description | We investigated the capability of molecular triads, consisting of two strong fluorophores that were covalently linked to a photochromic molecule, for optical gating. Therefore we monitored the fluorescence intensity of the fluorophores as a function of the isomeric state of the photoswitch. From the analysis of our data we develop a kinetic model that allows us to predict quantitatively the degree of the fluorescence modulation as a function of the mutual intensities of the lasers that are used to induce the fluorescence and the switching of the photochromic unit. We find that the achievable contrast for the modulation of the fluorescence depends mainly on the intensity ratio of the two light beams and appears to be very robust against absolute changes of these intensities. The latter result provides valuable information for the development of all-optical circuits which would require to handle different signal strengths for the input and output levels. |
format | Online Article Text |
id | pubmed-3949285 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-39492852014-03-12 Optical gating with organic building blocks. A quantitative model for the fluorescence modulation of photochromic perylene bisimide dithienylcyclopentene triads Pärs, Martti Gradmann, Michael Gräf, Katja Bauer, Peter Thelakkat, Mukundan Köhler, Jürgen Sci Rep Article We investigated the capability of molecular triads, consisting of two strong fluorophores that were covalently linked to a photochromic molecule, for optical gating. Therefore we monitored the fluorescence intensity of the fluorophores as a function of the isomeric state of the photoswitch. From the analysis of our data we develop a kinetic model that allows us to predict quantitatively the degree of the fluorescence modulation as a function of the mutual intensities of the lasers that are used to induce the fluorescence and the switching of the photochromic unit. We find that the achievable contrast for the modulation of the fluorescence depends mainly on the intensity ratio of the two light beams and appears to be very robust against absolute changes of these intensities. The latter result provides valuable information for the development of all-optical circuits which would require to handle different signal strengths for the input and output levels. Nature Publishing Group 2014-03-11 /pmc/articles/PMC3949285/ /pubmed/24614963 http://dx.doi.org/10.1038/srep04316 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-sa/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareALike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/ |
spellingShingle | Article Pärs, Martti Gradmann, Michael Gräf, Katja Bauer, Peter Thelakkat, Mukundan Köhler, Jürgen Optical gating with organic building blocks. A quantitative model for the fluorescence modulation of photochromic perylene bisimide dithienylcyclopentene triads |
title | Optical gating with organic building blocks. A quantitative model for the fluorescence modulation of photochromic perylene bisimide dithienylcyclopentene triads |
title_full | Optical gating with organic building blocks. A quantitative model for the fluorescence modulation of photochromic perylene bisimide dithienylcyclopentene triads |
title_fullStr | Optical gating with organic building blocks. A quantitative model for the fluorescence modulation of photochromic perylene bisimide dithienylcyclopentene triads |
title_full_unstemmed | Optical gating with organic building blocks. A quantitative model for the fluorescence modulation of photochromic perylene bisimide dithienylcyclopentene triads |
title_short | Optical gating with organic building blocks. A quantitative model for the fluorescence modulation of photochromic perylene bisimide dithienylcyclopentene triads |
title_sort | optical gating with organic building blocks. a quantitative model for the fluorescence modulation of photochromic perylene bisimide dithienylcyclopentene triads |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3949285/ https://www.ncbi.nlm.nih.gov/pubmed/24614963 http://dx.doi.org/10.1038/srep04316 |
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