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Nanowire Ring Embedded in a Flexible Substrate for Local Strain Detection
Optical sensing has attracted more and more attention in recent years with the advance in planar waveguide fabrication processes. The photon, as a carrier of information in sensing areas, could have a better performance than electrons. We propose a novel end-to-end ring cavity to fabricate sensitive...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7013763/ https://www.ncbi.nlm.nih.gov/pubmed/31940901 http://dx.doi.org/10.3390/ma13020347 |
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author | Li, Shengkun Qin, Yue Li, Xin Zhao, Yuejin |
author_facet | Li, Shengkun Qin, Yue Li, Xin Zhao, Yuejin |
author_sort | Li, Shengkun |
collection | PubMed |
description | Optical sensing has attracted more and more attention in recent years with the advance in planar waveguide fabrication processes. The photon, as a carrier of information in sensing areas, could have a better performance than electrons. We propose a novel end-to-end ring cavity to fabricate sensitive units of a strain sensor. We then propose a method of combining a flexible substrate with an end-to-end semiconductor nanowire ring cavity to fabricate novel strain sensors. We used a tuning resonant wavelength detected by a homebuilt excitation and detection system to measure applied strain. The resonant wavelength of the strain gauge was red-shift and linear tuned with increasing strain. The gauge factor was about 50, calculated through experiments and theory, and Q was 1938, with structural parameters L = 70 µm and d = 1 µm. The high sensitivity makes it possible to measure micro deformation more accurately. End-to-end coupling active nanowire waveguides eliminate the shortcomings of side by side coupling structures, which have the phasing shift with no minor optical density loss. This resonator in flexible substrates could be used not only as on-chip strain sensors for micro or nano deformation detecting but also as tunable light sources for photonic integrated circuits. |
format | Online Article Text |
id | pubmed-7013763 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-70137632020-03-09 Nanowire Ring Embedded in a Flexible Substrate for Local Strain Detection Li, Shengkun Qin, Yue Li, Xin Zhao, Yuejin Materials (Basel) Article Optical sensing has attracted more and more attention in recent years with the advance in planar waveguide fabrication processes. The photon, as a carrier of information in sensing areas, could have a better performance than electrons. We propose a novel end-to-end ring cavity to fabricate sensitive units of a strain sensor. We then propose a method of combining a flexible substrate with an end-to-end semiconductor nanowire ring cavity to fabricate novel strain sensors. We used a tuning resonant wavelength detected by a homebuilt excitation and detection system to measure applied strain. The resonant wavelength of the strain gauge was red-shift and linear tuned with increasing strain. The gauge factor was about 50, calculated through experiments and theory, and Q was 1938, with structural parameters L = 70 µm and d = 1 µm. The high sensitivity makes it possible to measure micro deformation more accurately. End-to-end coupling active nanowire waveguides eliminate the shortcomings of side by side coupling structures, which have the phasing shift with no minor optical density loss. This resonator in flexible substrates could be used not only as on-chip strain sensors for micro or nano deformation detecting but also as tunable light sources for photonic integrated circuits. MDPI 2020-01-12 /pmc/articles/PMC7013763/ /pubmed/31940901 http://dx.doi.org/10.3390/ma13020347 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Li, Shengkun Qin, Yue Li, Xin Zhao, Yuejin Nanowire Ring Embedded in a Flexible Substrate for Local Strain Detection |
title | Nanowire Ring Embedded in a Flexible Substrate for Local Strain Detection |
title_full | Nanowire Ring Embedded in a Flexible Substrate for Local Strain Detection |
title_fullStr | Nanowire Ring Embedded in a Flexible Substrate for Local Strain Detection |
title_full_unstemmed | Nanowire Ring Embedded in a Flexible Substrate for Local Strain Detection |
title_short | Nanowire Ring Embedded in a Flexible Substrate for Local Strain Detection |
title_sort | nanowire ring embedded in a flexible substrate for local strain detection |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7013763/ https://www.ncbi.nlm.nih.gov/pubmed/31940901 http://dx.doi.org/10.3390/ma13020347 |
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