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Dissipative coupling-induced phonon lasing
Phonon lasers, as the counterpart of photonic lasers, have been intensively studied in a large variety of systems; however, (all) most of them are based on the directly coherent pumping. Intuitively, dissipation is unfavorable for lasing. Here, we experimentally demonstrate a mechanism of generating...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
National Academy of Sciences
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9907125/ https://www.ncbi.nlm.nih.gov/pubmed/36538481 http://dx.doi.org/10.1073/pnas.2207543119 |
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author | Zhang, Qiankun Yang, Cheng Sheng, Jiteng Wu, Haibin |
author_facet | Zhang, Qiankun Yang, Cheng Sheng, Jiteng Wu, Haibin |
author_sort | Zhang, Qiankun |
collection | PubMed |
description | Phonon lasers, as the counterpart of photonic lasers, have been intensively studied in a large variety of systems; however, (all) most of them are based on the directly coherent pumping. Intuitively, dissipation is unfavorable for lasing. Here, we experimentally demonstrate a mechanism of generating phonon lasing from the dissipative coupling in a multimode optomechanical system. By precisely engineering the dissipations of two membranes and tuning the intensity modulation of the cavity light, the two-membrane-in-the-middle system exhibits non-Hermitian characteristics and the cavity-mediated interaction between two nanomechanical resonators becomes purely dissipative. The level attraction and damping repulsion are clearly exhibited as the signature of dissipative coupling. After the exceptional point, a non-Hermitian phase transition, where eigenvalues and the corresponding eigenmodes coalesce, two phonon modes are simultaneously excited into the self-sustained oscillation regime by increasing the interaction strength over a critical value (threshold). In distinct contrast to conventional phonon lasers, the measurement of the second-order phonon correlation reveals the oscillatory and biexponential phases in the nonlasing regime as well as the coherence phase in the lasing regime. Our study provides a method to study phonon lasers in a non-Hermitian open system and could be applied to a wide range of disciplines, including optics, acoustics, and quantum many-body physics. |
format | Online Article Text |
id | pubmed-9907125 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | National Academy of Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-99071252023-06-20 Dissipative coupling-induced phonon lasing Zhang, Qiankun Yang, Cheng Sheng, Jiteng Wu, Haibin Proc Natl Acad Sci U S A Physical Sciences Phonon lasers, as the counterpart of photonic lasers, have been intensively studied in a large variety of systems; however, (all) most of them are based on the directly coherent pumping. Intuitively, dissipation is unfavorable for lasing. Here, we experimentally demonstrate a mechanism of generating phonon lasing from the dissipative coupling in a multimode optomechanical system. By precisely engineering the dissipations of two membranes and tuning the intensity modulation of the cavity light, the two-membrane-in-the-middle system exhibits non-Hermitian characteristics and the cavity-mediated interaction between two nanomechanical resonators becomes purely dissipative. The level attraction and damping repulsion are clearly exhibited as the signature of dissipative coupling. After the exceptional point, a non-Hermitian phase transition, where eigenvalues and the corresponding eigenmodes coalesce, two phonon modes are simultaneously excited into the self-sustained oscillation regime by increasing the interaction strength over a critical value (threshold). In distinct contrast to conventional phonon lasers, the measurement of the second-order phonon correlation reveals the oscillatory and biexponential phases in the nonlasing regime as well as the coherence phase in the lasing regime. Our study provides a method to study phonon lasers in a non-Hermitian open system and could be applied to a wide range of disciplines, including optics, acoustics, and quantum many-body physics. National Academy of Sciences 2022-12-20 2022-12-27 /pmc/articles/PMC9907125/ /pubmed/36538481 http://dx.doi.org/10.1073/pnas.2207543119 Text en Copyright © 2022 the Author(s). Published by PNAS. https://creativecommons.org/licenses/by-nc-nd/4.0/This article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) . |
spellingShingle | Physical Sciences Zhang, Qiankun Yang, Cheng Sheng, Jiteng Wu, Haibin Dissipative coupling-induced phonon lasing |
title | Dissipative coupling-induced phonon lasing |
title_full | Dissipative coupling-induced phonon lasing |
title_fullStr | Dissipative coupling-induced phonon lasing |
title_full_unstemmed | Dissipative coupling-induced phonon lasing |
title_short | Dissipative coupling-induced phonon lasing |
title_sort | dissipative coupling-induced phonon lasing |
topic | Physical Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9907125/ https://www.ncbi.nlm.nih.gov/pubmed/36538481 http://dx.doi.org/10.1073/pnas.2207543119 |
work_keys_str_mv | AT zhangqiankun dissipativecouplinginducedphononlasing AT yangcheng dissipativecouplinginducedphononlasing AT shengjiteng dissipativecouplinginducedphononlasing AT wuhaibin dissipativecouplinginducedphononlasing |