Exceptional energy harvesting from coupled bound states
Abstract Sustainable and affordable energy is one of the most critical issues facing society. Noise is ubiquitous, albeit with a low energy density, making it an almost perfect energy source. Bound states in the continuum overcome this problem through a highly localized energy increase. Here, we pre...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-04-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-58831-1 |
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| author | Felix Kronowetter Anton Melnikov Marcus Maeder Tao Yang Yan Kei Chiang Sebastian Oberst David A. Powell Steffen Marburg |
| author_facet | Felix Kronowetter Anton Melnikov Marcus Maeder Tao Yang Yan Kei Chiang Sebastian Oberst David A. Powell Steffen Marburg |
| author_sort | Felix Kronowetter |
| collection | DOAJ |
| description | Abstract Sustainable and affordable energy is one of the most critical issues facing society. Noise is ubiquitous, albeit with a low energy density, making it an almost perfect energy source. Bound states in the continuum overcome this problem through a highly localized energy increase. Here, we present theoretical, numerical, and experimental studies on bound state acoustic harvesters. Under white noise excitation, the bound state harvester outperforms the conventional Helmholtz resonator harvester by a factor of 2.2 in terms of amplitude spectral density of the output voltage and by a factor of 10 in terms of output power. A super-bound state is formed by using pressure coupling in a pseudo-free field environment, further increasing the energy enhancement. This results in a 50-fold increase in output voltage compared to a single bound state harvester. Our findings advance the state-of-the-art in sustainable energy harvesting for low-power devices. |
| format | Article |
| id | doaj-art-59ac01cada974c83bc4ee0b508d3f4a4 |
| institution | DOAJ |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-59ac01cada974c83bc4ee0b508d3f4a42025-08-20T03:18:28ZengNature PortfolioNature Communications2041-17232025-04-011611910.1038/s41467-025-58831-1Exceptional energy harvesting from coupled bound statesFelix Kronowetter0Anton Melnikov1Marcus Maeder2Tao Yang3Yan Kei Chiang4Sebastian Oberst5David A. Powell6Steffen Marburg7Chair of Vibro-Acoustics of Vehicles and Machines, Department of Engineering Physics and Computation, TUM School of Engineering and Design, Technical University of MunichBosch SensortecChair of Vibro-Acoustics of Vehicles and Machines, Department of Engineering Physics and Computation, TUM School of Engineering and Design, Technical University of MunichChair of Vibro-Acoustics of Vehicles and Machines, Department of Engineering Physics and Computation, TUM School of Engineering and Design, Technical University of MunichSchool of Engineering and Information Technology, University of New South WalesSchool of Mechanical and Mechatronic Engineering, Centre for Audio, Acoustics and Vibration, Faculty of Engineering and IT, University of Technology SydneySchool of Engineering and Information Technology, University of New South WalesChair of Vibro-Acoustics of Vehicles and Machines, Department of Engineering Physics and Computation, TUM School of Engineering and Design, Technical University of MunichAbstract Sustainable and affordable energy is one of the most critical issues facing society. Noise is ubiquitous, albeit with a low energy density, making it an almost perfect energy source. Bound states in the continuum overcome this problem through a highly localized energy increase. Here, we present theoretical, numerical, and experimental studies on bound state acoustic harvesters. Under white noise excitation, the bound state harvester outperforms the conventional Helmholtz resonator harvester by a factor of 2.2 in terms of amplitude spectral density of the output voltage and by a factor of 10 in terms of output power. A super-bound state is formed by using pressure coupling in a pseudo-free field environment, further increasing the energy enhancement. This results in a 50-fold increase in output voltage compared to a single bound state harvester. Our findings advance the state-of-the-art in sustainable energy harvesting for low-power devices.https://doi.org/10.1038/s41467-025-58831-1 |
| spellingShingle | Felix Kronowetter Anton Melnikov Marcus Maeder Tao Yang Yan Kei Chiang Sebastian Oberst David A. Powell Steffen Marburg Exceptional energy harvesting from coupled bound states Nature Communications |
| title | Exceptional energy harvesting from coupled bound states |
| title_full | Exceptional energy harvesting from coupled bound states |
| title_fullStr | Exceptional energy harvesting from coupled bound states |
| title_full_unstemmed | Exceptional energy harvesting from coupled bound states |
| title_short | Exceptional energy harvesting from coupled bound states |
| title_sort | exceptional energy harvesting from coupled bound states |
| url | https://doi.org/10.1038/s41467-025-58831-1 |
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