Optical contrast and refractive index of natural van der Waals heterostructure nanosheets of franckeite

We study mechanically exfoliated nanosheets of franckeite by quantitative optical microscopy. The analysis of transmission-mode and epi-illumination-mode optical microscopy images provides a rapid method to estimate the thickness of the exfoliated flakes at first glance. A quantitative analysis of t...

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Detalles Bibliográficos
Autores principales: Gant, Patricia, Ghasemi, Foad, Maeso, David, Munuera, Carmen, López-Elvira, Elena, Frisenda, Riccardo, De Lara, David Pérez, Rubio-Bollinger, Gabino, Garcia-Hernandez, Mar, Castellanos-Gomez, Andres
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Beilstein-Institut 2017
Materias:
Full Research Paper
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5687002/
https://www.ncbi.nlm.nih.gov/pubmed/29181292
http://dx.doi.org/10.3762/bjnano.8.235
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author Gant, Patricia
Ghasemi, Foad
Maeso, David
Munuera, Carmen
López-Elvira, Elena
Frisenda, Riccardo
De Lara, David Pérez
Rubio-Bollinger, Gabino
Garcia-Hernandez, Mar
Castellanos-Gomez, Andres
author_facet Gant, Patricia
Ghasemi, Foad
Maeso, David
Munuera, Carmen
López-Elvira, Elena
Frisenda, Riccardo
De Lara, David Pérez
Rubio-Bollinger, Gabino
Garcia-Hernandez, Mar
Castellanos-Gomez, Andres
author_sort Gant, Patricia
collection PubMed
description We study mechanically exfoliated nanosheets of franckeite by quantitative optical microscopy. The analysis of transmission-mode and epi-illumination-mode optical microscopy images provides a rapid method to estimate the thickness of the exfoliated flakes at first glance. A quantitative analysis of the optical contrast spectra by means of micro-reflectance allows one to determine the refractive index of franckeite over a broad range of the visible spectrum through a fit of the acquired spectra to a model based on the Fresnel law.
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spelling pubmed-56870022017-11-27 Optical contrast and refractive index of natural van der Waals heterostructure nanosheets of franckeite Gant, Patricia Ghasemi, Foad Maeso, David Munuera, Carmen López-Elvira, Elena Frisenda, Riccardo De Lara, David Pérez Rubio-Bollinger, Gabino Garcia-Hernandez, Mar Castellanos-Gomez, Andres Beilstein J Nanotechnol Full Research Paper We study mechanically exfoliated nanosheets of franckeite by quantitative optical microscopy. The analysis of transmission-mode and epi-illumination-mode optical microscopy images provides a rapid method to estimate the thickness of the exfoliated flakes at first glance. A quantitative analysis of the optical contrast spectra by means of micro-reflectance allows one to determine the refractive index of franckeite over a broad range of the visible spectrum through a fit of the acquired spectra to a model based on the Fresnel law. Beilstein-Institut 2017-11-08 /pmc/articles/PMC5687002/ /pubmed/29181292 http://dx.doi.org/10.3762/bjnano.8.235 Text en Copyright © 2017, Gant 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
Gant, Patricia
Ghasemi, Foad
Maeso, David
Munuera, Carmen
López-Elvira, Elena
Frisenda, Riccardo
De Lara, David Pérez
Rubio-Bollinger, Gabino
Garcia-Hernandez, Mar
Castellanos-Gomez, Andres
Optical contrast and refractive index of natural van der Waals heterostructure nanosheets of franckeite
title Optical contrast and refractive index of natural van der Waals heterostructure nanosheets of franckeite
title_full Optical contrast and refractive index of natural van der Waals heterostructure nanosheets of franckeite
title_fullStr Optical contrast and refractive index of natural van der Waals heterostructure nanosheets of franckeite
title_full_unstemmed Optical contrast and refractive index of natural van der Waals heterostructure nanosheets of franckeite
title_short Optical contrast and refractive index of natural van der Waals heterostructure nanosheets of franckeite
title_sort optical contrast and refractive index of natural van der waals heterostructure nanosheets of franckeite
topic Full Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5687002/
https://www.ncbi.nlm.nih.gov/pubmed/29181292
http://dx.doi.org/10.3762/bjnano.8.235
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