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Nonlinear cavity optomechanics with nanomechanical thermal fluctuations
Although the interaction between light and motion in cavity optomechanical systems is inherently nonlinear, experimental demonstrations to date have allowed a linearized description in all except highly driven cases. Here, we demonstrate a nanoscale optomechanical system in which the interaction bet...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5504350/ https://www.ncbi.nlm.nih.gov/pubmed/28685755 http://dx.doi.org/10.1038/ncomms16024 |
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author | Leijssen, Rick La Gala, Giada R. Freisem, Lars Muhonen, Juha T. Verhagen, Ewold |
author_facet | Leijssen, Rick La Gala, Giada R. Freisem, Lars Muhonen, Juha T. Verhagen, Ewold |
author_sort | Leijssen, Rick |
collection | PubMed |
description | Although the interaction between light and motion in cavity optomechanical systems is inherently nonlinear, experimental demonstrations to date have allowed a linearized description in all except highly driven cases. Here, we demonstrate a nanoscale optomechanical system in which the interaction between light and motion is so large (single-photon cooperativity C(0)≈10(3)) that thermal motion induces optical frequency fluctuations larger than the intrinsic optical linewidth. The system thereby operates in a fully nonlinear regime, which pronouncedly impacts the optical response, displacement measurement and radiation pressure backaction. Specifically, we measure an apparent optical linewidth that is dominated by thermo-mechanically induced frequency fluctuations over a wide temperature range, and show that in this regime thermal displacement measurements cannot be described by conventional analytical models. We perform a proof-of-concept demonstration of exploiting the nonlinearity to conduct sensitive quadratic readout of nanomechanical displacement. Finally, we explore how backaction in this regime affects the mechanical fluctuation spectra. |
format | Online Article Text |
id | pubmed-5504350 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-55043502017-07-14 Nonlinear cavity optomechanics with nanomechanical thermal fluctuations Leijssen, Rick La Gala, Giada R. Freisem, Lars Muhonen, Juha T. Verhagen, Ewold Nat Commun Article Although the interaction between light and motion in cavity optomechanical systems is inherently nonlinear, experimental demonstrations to date have allowed a linearized description in all except highly driven cases. Here, we demonstrate a nanoscale optomechanical system in which the interaction between light and motion is so large (single-photon cooperativity C(0)≈10(3)) that thermal motion induces optical frequency fluctuations larger than the intrinsic optical linewidth. The system thereby operates in a fully nonlinear regime, which pronouncedly impacts the optical response, displacement measurement and radiation pressure backaction. Specifically, we measure an apparent optical linewidth that is dominated by thermo-mechanically induced frequency fluctuations over a wide temperature range, and show that in this regime thermal displacement measurements cannot be described by conventional analytical models. We perform a proof-of-concept demonstration of exploiting the nonlinearity to conduct sensitive quadratic readout of nanomechanical displacement. Finally, we explore how backaction in this regime affects the mechanical fluctuation spectra. Nature Publishing Group 2017-07-07 /pmc/articles/PMC5504350/ /pubmed/28685755 http://dx.doi.org/10.1038/ncomms16024 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ 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 Leijssen, Rick La Gala, Giada R. Freisem, Lars Muhonen, Juha T. Verhagen, Ewold Nonlinear cavity optomechanics with nanomechanical thermal fluctuations |
title | Nonlinear cavity optomechanics with nanomechanical thermal fluctuations |
title_full | Nonlinear cavity optomechanics with nanomechanical thermal fluctuations |
title_fullStr | Nonlinear cavity optomechanics with nanomechanical thermal fluctuations |
title_full_unstemmed | Nonlinear cavity optomechanics with nanomechanical thermal fluctuations |
title_short | Nonlinear cavity optomechanics with nanomechanical thermal fluctuations |
title_sort | nonlinear cavity optomechanics with nanomechanical thermal fluctuations |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5504350/ https://www.ncbi.nlm.nih.gov/pubmed/28685755 http://dx.doi.org/10.1038/ncomms16024 |
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