Negative refraction angular characterization in one-dimensional photonic crystals.

Negative refraction angular characterization in one-dimensional photonic crystals.

<h4>Background</h4>Photonic crystals are artificial structures that have periodic dielectric components with different refractive indices. Under certain conditions, they abnormally refract the light, a phenomenon called negative refraction. Here we experimentally characterize negative re...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Jesus Eduardo Lugo, Rafael Doti, Jocelyn Faubert
Formato: article
Lenguaje:EN
Publicado: Public Library of Science (PLoS) 2011
Materias:
Medicine
R
Science
Q
Acceso en línea:https://doaj.org/article/4aecf2e265504f9ebe0e3376a465e2a1
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:doaj.org-article:4aecf2e265504f9ebe0e3376a465e2a1
record_format dspace
spelling oai:doaj.org-article:4aecf2e265504f9ebe0e3376a465e2a12021-11-18T06:56:11ZNegative refraction angular characterization in one-dimensional photonic crystals.1932-620310.1371/journal.pone.0017188https://doaj.org/article/4aecf2e265504f9ebe0e3376a465e2a12011-04-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21494332/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Photonic crystals are artificial structures that have periodic dielectric components with different refractive indices. Under certain conditions, they abnormally refract the light, a phenomenon called negative refraction. Here we experimentally characterize negative refraction in a one dimensional photonic crystal structure; near the low frequency edge of the fourth photonic bandgap. We compare the experimental results with current theory and a theory based on the group velocity developed here. We also analytically derived the negative refraction correctness condition that gives the angular region where negative refraction occurs.<h4>Methodology/principal findings</h4>By using standard photonic techniques we experimentally determined the relationship between incidence and negative refraction angles and found the negative refraction range by applying the correctness condition. In order to compare both theories with experimental results an output refraction correction was utilized. The correction uses Snell's law and an effective refractive index based on two effective dielectric constants. We found good agreement between experiment and both theories in the negative refraction zone.<h4>Conclusions/significance</h4>Since both theories and the experimental observations agreed well in the negative refraction region, we can use both negative refraction theories plus the output correction to predict negative refraction angles. This can be very useful from a practical point of view for space filtering applications such as a photonic demultiplexer or for sensing applications.Jesus Eduardo LugoRafael DotiJocelyn FaubertPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 4, p e17188 (2011)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Jesus Eduardo Lugo
Rafael Doti
Jocelyn Faubert
Negative refraction angular characterization in one-dimensional photonic crystals.
description <h4>Background</h4>Photonic crystals are artificial structures that have periodic dielectric components with different refractive indices. Under certain conditions, they abnormally refract the light, a phenomenon called negative refraction. Here we experimentally characterize negative refraction in a one dimensional photonic crystal structure; near the low frequency edge of the fourth photonic bandgap. We compare the experimental results with current theory and a theory based on the group velocity developed here. We also analytically derived the negative refraction correctness condition that gives the angular region where negative refraction occurs.<h4>Methodology/principal findings</h4>By using standard photonic techniques we experimentally determined the relationship between incidence and negative refraction angles and found the negative refraction range by applying the correctness condition. In order to compare both theories with experimental results an output refraction correction was utilized. The correction uses Snell's law and an effective refractive index based on two effective dielectric constants. We found good agreement between experiment and both theories in the negative refraction zone.<h4>Conclusions/significance</h4>Since both theories and the experimental observations agreed well in the negative refraction region, we can use both negative refraction theories plus the output correction to predict negative refraction angles. This can be very useful from a practical point of view for space filtering applications such as a photonic demultiplexer or for sensing applications.
format article
author Jesus Eduardo Lugo
Rafael Doti
Jocelyn Faubert
author_facet Jesus Eduardo Lugo
Rafael Doti
Jocelyn Faubert
author_sort Jesus Eduardo Lugo
title Negative refraction angular characterization in one-dimensional photonic crystals.
title_short Negative refraction angular characterization in one-dimensional photonic crystals.
title_full Negative refraction angular characterization in one-dimensional photonic crystals.
title_fullStr Negative refraction angular characterization in one-dimensional photonic crystals.
title_full_unstemmed Negative refraction angular characterization in one-dimensional photonic crystals.
title_sort negative refraction angular characterization in one-dimensional photonic crystals.
publisher Public Library of Science (PLoS)
publishDate 2011
url https://doaj.org/article/4aecf2e265504f9ebe0e3376a465e2a1
work_keys_str_mv AT jesuseduardolugo negativerefractionangularcharacterizationinonedimensionalphotoniccrystals
AT rafaeldoti negativerefractionangularcharacterizationinonedimensionalphotoniccrystals
AT jocelynfaubert negativerefractionangularcharacterizationinonedimensionalphotoniccrystals
_version_ 1718424164884283392

Ejemplares similares