Cargando…
Flexible photonic crystal membranes with nanoparticle high refractive index layers
Flexible photonic crystal slabs with an area of 2 cm(2) are fabricated by nanoimprint replication of a 400 nm period linear grating nanostructure into a ≈60 µm thick polydimethylsiloxane membrane and subsequent spin coating of a high refractive index titanium dioxide nanoparticle layer. Samples are...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Beilstein-Institut
2017
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5301961/ https://www.ncbi.nlm.nih.gov/pubmed/28243558 http://dx.doi.org/10.3762/bjnano.8.22 |
_version_ | 1782506455108157440 |
---|---|
author | Karrock, Torben Paulsen, Moritz Gerken, Martina |
author_facet | Karrock, Torben Paulsen, Moritz Gerken, Martina |
author_sort | Karrock, Torben |
collection | PubMed |
description | Flexible photonic crystal slabs with an area of 2 cm(2) are fabricated by nanoimprint replication of a 400 nm period linear grating nanostructure into a ≈60 µm thick polydimethylsiloxane membrane and subsequent spin coating of a high refractive index titanium dioxide nanoparticle layer. Samples are prepared with different nanoparticle concentrations. Guided-mode resonances with a quality factor of Q ≈ 40 are observed. The highly flexible nature of the membranes allows for stretching of up to 20% elongation. Resonance peak positions for unstretched samples vary from 555 to 630 nm depending on the particle concentration. Stretching results in a resonance shift for these peaks of up to ≈80 nm, i.e., 3.9 nm per % strain. The color impression of the samples observed with crossed-polarization filters changes from the green to the red regime. The high tunability renders these membranes promising for both tunable optical devices as well as visualization devices. |
format | Online Article Text |
id | pubmed-5301961 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Beilstein-Institut |
record_format | MEDLINE/PubMed |
spelling | pubmed-53019612017-02-27 Flexible photonic crystal membranes with nanoparticle high refractive index layers Karrock, Torben Paulsen, Moritz Gerken, Martina Beilstein J Nanotechnol Full Research Paper Flexible photonic crystal slabs with an area of 2 cm(2) are fabricated by nanoimprint replication of a 400 nm period linear grating nanostructure into a ≈60 µm thick polydimethylsiloxane membrane and subsequent spin coating of a high refractive index titanium dioxide nanoparticle layer. Samples are prepared with different nanoparticle concentrations. Guided-mode resonances with a quality factor of Q ≈ 40 are observed. The highly flexible nature of the membranes allows for stretching of up to 20% elongation. Resonance peak positions for unstretched samples vary from 555 to 630 nm depending on the particle concentration. Stretching results in a resonance shift for these peaks of up to ≈80 nm, i.e., 3.9 nm per % strain. The color impression of the samples observed with crossed-polarization filters changes from the green to the red regime. The high tunability renders these membranes promising for both tunable optical devices as well as visualization devices. Beilstein-Institut 2017-01-20 /pmc/articles/PMC5301961/ /pubmed/28243558 http://dx.doi.org/10.3762/bjnano.8.22 Text en Copyright © 2017, Karrock et al. https://creativecommons.org/licenses/by/4.0https://www.beilstein-journals.org/bjnano/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (https://www.beilstein-journals.org/bjnano/terms) |
spellingShingle | Full Research Paper Karrock, Torben Paulsen, Moritz Gerken, Martina Flexible photonic crystal membranes with nanoparticle high refractive index layers |
title | Flexible photonic crystal membranes with nanoparticle high refractive index layers |
title_full | Flexible photonic crystal membranes with nanoparticle high refractive index layers |
title_fullStr | Flexible photonic crystal membranes with nanoparticle high refractive index layers |
title_full_unstemmed | Flexible photonic crystal membranes with nanoparticle high refractive index layers |
title_short | Flexible photonic crystal membranes with nanoparticle high refractive index layers |
title_sort | flexible photonic crystal membranes with nanoparticle high refractive index layers |
topic | Full Research Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5301961/ https://www.ncbi.nlm.nih.gov/pubmed/28243558 http://dx.doi.org/10.3762/bjnano.8.22 |
work_keys_str_mv | AT karrocktorben flexiblephotoniccrystalmembraneswithnanoparticlehighrefractiveindexlayers AT paulsenmoritz flexiblephotoniccrystalmembraneswithnanoparticlehighrefractiveindexlayers AT gerkenmartina flexiblephotoniccrystalmembraneswithnanoparticlehighrefractiveindexlayers |