In-depth study on resonant tunneling for subwavelength imaging

We report new frequency bands for subwavelength imaging by using the resonant tunneling method which have not been explored previously. As per the existing theory of resonant tunneling, imaging frequency is limited for a certain number of crystals. However, after conducting an analytical analysis ov...

Descripción completa

Detalles Bibliográficos
Autores principales: Anzan-Uz-Zaman, Md., Song, Kyungjun, Lee, EunJoong, Hur, Shin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6195579/
https://www.ncbi.nlm.nih.gov/pubmed/30341393
http://dx.doi.org/10.1038/s41598-018-33653-y
_version_ 1783364414855970816
author Anzan-Uz-Zaman, Md.
Song, Kyungjun
Lee, EunJoong
Hur, Shin
author_facet Anzan-Uz-Zaman, Md.
Song, Kyungjun
Lee, EunJoong
Hur, Shin
author_sort Anzan-Uz-Zaman, Md.
collection PubMed
description We report new frequency bands for subwavelength imaging by using the resonant tunneling method which have not been explored previously. As per the existing theory of resonant tunneling, imaging frequency is limited for a certain number of crystals. However, after conducting an analytical analysis over a wide range of frequencies, we observed that higher frequencies do exist for subwavelength imaging. We verified this observation both numerically and experimentally. We extended our study to observe the effect of lattice periodicity on image resolution. By reducing periodicity during experiment, we achieved a resolution of λ/9.5 at the conventional region and λ/2.45 at the higher band region.
format Online
Article
Text
id pubmed-6195579
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-61955792018-10-24 In-depth study on resonant tunneling for subwavelength imaging Anzan-Uz-Zaman, Md. Song, Kyungjun Lee, EunJoong Hur, Shin Sci Rep Article We report new frequency bands for subwavelength imaging by using the resonant tunneling method which have not been explored previously. As per the existing theory of resonant tunneling, imaging frequency is limited for a certain number of crystals. However, after conducting an analytical analysis over a wide range of frequencies, we observed that higher frequencies do exist for subwavelength imaging. We verified this observation both numerically and experimentally. We extended our study to observe the effect of lattice periodicity on image resolution. By reducing periodicity during experiment, we achieved a resolution of λ/9.5 at the conventional region and λ/2.45 at the higher band region. Nature Publishing Group UK 2018-10-19 /pmc/articles/PMC6195579/ /pubmed/30341393 http://dx.doi.org/10.1038/s41598-018-33653-y Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Anzan-Uz-Zaman, Md.
Song, Kyungjun
Lee, EunJoong
Hur, Shin
In-depth study on resonant tunneling for subwavelength imaging
title In-depth study on resonant tunneling for subwavelength imaging
title_full In-depth study on resonant tunneling for subwavelength imaging
title_fullStr In-depth study on resonant tunneling for subwavelength imaging
title_full_unstemmed In-depth study on resonant tunneling for subwavelength imaging
title_short In-depth study on resonant tunneling for subwavelength imaging
title_sort in-depth study on resonant tunneling for subwavelength imaging
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6195579/
https://www.ncbi.nlm.nih.gov/pubmed/30341393
http://dx.doi.org/10.1038/s41598-018-33653-y
work_keys_str_mv AT anzanuzzamanmd indepthstudyonresonanttunnelingforsubwavelengthimaging
AT songkyungjun indepthstudyonresonanttunnelingforsubwavelengthimaging
AT leeeunjoong indepthstudyonresonanttunnelingforsubwavelengthimaging
AT hurshin indepthstudyonresonanttunnelingforsubwavelengthimaging

Ejemplares similares