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Driven nonlinear nanomechanical resonators as digital signal detectors
Because of their nonlinearity, vibrational modes of resonantly driven nanomechanical systems have coexisting stable states of forced vibrations in a certain range of the amplitude of the driving force. Depending on its phase, which encodes binary information, a signal at the same frequency increases...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6062527/ https://www.ncbi.nlm.nih.gov/pubmed/30050111 http://dx.doi.org/10.1038/s41598-018-29572-7 |
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author | Tadokoro, Yukihiro Tanaka, Hiroya Dykman, M. I. |
author_facet | Tadokoro, Yukihiro Tanaka, Hiroya Dykman, M. I. |
author_sort | Tadokoro, Yukihiro |
collection | PubMed |
description | Because of their nonlinearity, vibrational modes of resonantly driven nanomechanical systems have coexisting stable states of forced vibrations in a certain range of the amplitude of the driving force. Depending on its phase, which encodes binary information, a signal at the same frequency increases or decreases the force amplitude. The resulting force amplitude can be outside the range of bistability. The values of the mode amplitude differ significantly on the opposite sides of the bistability region. Therefore the mode amplitude is very sensitive to the signal phase. This suggests using a driven mode as a bi-directional bifurcation amplifier, which switches in the opposite directions depending on the signal phase and provides an essentially digital output. We study the operation of the amplifier near the critical point where the width of the bistability region goes to zero and thus the threshold of the signal amplitude is low. We also develop an analytical technique and study the error rate near the threshold. The results apply to a broad range of currently studied systems and extend to micromechanical systems and nonlinear electromagnetic cavities. |
format | Online Article Text |
id | pubmed-6062527 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-60625272018-07-31 Driven nonlinear nanomechanical resonators as digital signal detectors Tadokoro, Yukihiro Tanaka, Hiroya Dykman, M. I. Sci Rep Article Because of their nonlinearity, vibrational modes of resonantly driven nanomechanical systems have coexisting stable states of forced vibrations in a certain range of the amplitude of the driving force. Depending on its phase, which encodes binary information, a signal at the same frequency increases or decreases the force amplitude. The resulting force amplitude can be outside the range of bistability. The values of the mode amplitude differ significantly on the opposite sides of the bistability region. Therefore the mode amplitude is very sensitive to the signal phase. This suggests using a driven mode as a bi-directional bifurcation amplifier, which switches in the opposite directions depending on the signal phase and provides an essentially digital output. We study the operation of the amplifier near the critical point where the width of the bistability region goes to zero and thus the threshold of the signal amplitude is low. We also develop an analytical technique and study the error rate near the threshold. The results apply to a broad range of currently studied systems and extend to micromechanical systems and nonlinear electromagnetic cavities. Nature Publishing Group UK 2018-07-26 /pmc/articles/PMC6062527/ /pubmed/30050111 http://dx.doi.org/10.1038/s41598-018-29572-7 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 Tadokoro, Yukihiro Tanaka, Hiroya Dykman, M. I. Driven nonlinear nanomechanical resonators as digital signal detectors |
title | Driven nonlinear nanomechanical resonators as digital signal detectors |
title_full | Driven nonlinear nanomechanical resonators as digital signal detectors |
title_fullStr | Driven nonlinear nanomechanical resonators as digital signal detectors |
title_full_unstemmed | Driven nonlinear nanomechanical resonators as digital signal detectors |
title_short | Driven nonlinear nanomechanical resonators as digital signal detectors |
title_sort | driven nonlinear nanomechanical resonators as digital signal detectors |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6062527/ https://www.ncbi.nlm.nih.gov/pubmed/30050111 http://dx.doi.org/10.1038/s41598-018-29572-7 |
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