Practical realization of a sub-λ/2 acoustic jet

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Practical realization of a sub-λ/2 acoustic jet. / Veira Canle, Daniel; Kekkonen, Tuukka; Mäkinen, Joni; Puranen, Tuomas; Nieminen, Heikki J.; Kuronen, Antti; Franssila, Sami; Kotiaho, Tapio; Salmi, Ari; Hæggström, Edward.

In: Scientific Reports, Vol. 9, No. 1, 5189, 01.12.2019.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Veira Canle, D, Kekkonen, T, Mäkinen, J, Puranen, T, Nieminen, HJ, Kuronen, A, Franssila, S, Kotiaho, T, Salmi, A & Hæggström, E 2019, 'Practical realization of a sub-λ/2 acoustic jet', Scientific Reports, vol. 9, no. 1, 5189. https://doi.org/10.1038/s41598-019-41335-6

APA

Veira Canle, D., Kekkonen, T., Mäkinen, J., Puranen, T., Nieminen, H. J., Kuronen, A., ... Hæggström, E. (2019). Practical realization of a sub-λ/2 acoustic jet. Scientific Reports, 9(1), [5189]. https://doi.org/10.1038/s41598-019-41335-6

Vancouver

Veira Canle D, Kekkonen T, Mäkinen J, Puranen T, Nieminen HJ, Kuronen A et al. Practical realization of a sub-λ/2 acoustic jet. Scientific Reports. 2019 Dec 1;9(1). 5189. https://doi.org/10.1038/s41598-019-41335-6

Author

Veira Canle, Daniel ; Kekkonen, Tuukka ; Mäkinen, Joni ; Puranen, Tuomas ; Nieminen, Heikki J. ; Kuronen, Antti ; Franssila, Sami ; Kotiaho, Tapio ; Salmi, Ari ; Hæggström, Edward. / Practical realization of a sub-λ/2 acoustic jet. In: Scientific Reports. 2019 ; Vol. 9, No. 1.

Bibtex - Download

@article{5cc75e9af0c64ca99220a278459e4d52,
title = "Practical realization of a sub-λ/2 acoustic jet",
abstract = "Studies in optics and acoustics have employed metamaterial lenses to achieve sub-wavelength localization, e.g. a recently introduced concept called ‘acoustojet’ which in simulations localizes acoustic energy to a spot smaller than λ/2. However previous experimental results on the acoustojet have barely reached λ/2-wide localization. Here we show, by simulations and experiments, that a sub-λ/2 wide localization can be achieved by translating the concept of a photonic jet into the acoustic realm. We performed nano- to macroscale molecular dynamics (MD) and finite element method (FEM) simulations as well as macroscale experiments. We demonstrated that by choosing a suitable size cylindrical lens, and by selecting the speed-of-sound ratio between the lens material(s) and the surrounding medium, an acoustic jet (‘acoustic sheet’) is formed with a full width at half maximum (FWHM) less than λ/2. The results show, that the acoustojet approach can be experimentally realized with easy-to-manufacture acoustic lenses at the macroscale. MD simulations demonstrate that the concept can be extended to coherent phonons at nanoscale. Finally, our FEM simulations identify some micrometer size structures that could be realized in practice. Our results may contribute to starting a new era of super resolution acoustic imaging: We foresee that jet generating constructs can be readily manufactured, since suitable material combinations can be found from nanoscale to macroscale. Tight focusing of mechanical energy is highly desirable in e.g. electronics, materials science, medicine, biosciences, and energy harvesting.",
keywords = "SCATTERING, LIGHT",
author = "{Veira Canle}, Daniel and Tuukka Kekkonen and Joni M{\"a}kinen and Tuomas Puranen and Nieminen, {Heikki J.} and Antti Kuronen and Sami Franssila and Tapio Kotiaho and Ari Salmi and Edward H{\ae}ggstr{\"o}m",
year = "2019",
month = "12",
day = "1",
doi = "10.1038/s41598-019-41335-6",
language = "English",
volume = "9",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",
number = "1",

}

RIS - Download

TY - JOUR

T1 - Practical realization of a sub-λ/2 acoustic jet

AU - Veira Canle, Daniel

AU - Kekkonen, Tuukka

AU - Mäkinen, Joni

AU - Puranen, Tuomas

AU - Nieminen, Heikki J.

AU - Kuronen, Antti

AU - Franssila, Sami

AU - Kotiaho, Tapio

AU - Salmi, Ari

AU - Hæggström, Edward

PY - 2019/12/1

Y1 - 2019/12/1

N2 - Studies in optics and acoustics have employed metamaterial lenses to achieve sub-wavelength localization, e.g. a recently introduced concept called ‘acoustojet’ which in simulations localizes acoustic energy to a spot smaller than λ/2. However previous experimental results on the acoustojet have barely reached λ/2-wide localization. Here we show, by simulations and experiments, that a sub-λ/2 wide localization can be achieved by translating the concept of a photonic jet into the acoustic realm. We performed nano- to macroscale molecular dynamics (MD) and finite element method (FEM) simulations as well as macroscale experiments. We demonstrated that by choosing a suitable size cylindrical lens, and by selecting the speed-of-sound ratio between the lens material(s) and the surrounding medium, an acoustic jet (‘acoustic sheet’) is formed with a full width at half maximum (FWHM) less than λ/2. The results show, that the acoustojet approach can be experimentally realized with easy-to-manufacture acoustic lenses at the macroscale. MD simulations demonstrate that the concept can be extended to coherent phonons at nanoscale. Finally, our FEM simulations identify some micrometer size structures that could be realized in practice. Our results may contribute to starting a new era of super resolution acoustic imaging: We foresee that jet generating constructs can be readily manufactured, since suitable material combinations can be found from nanoscale to macroscale. Tight focusing of mechanical energy is highly desirable in e.g. electronics, materials science, medicine, biosciences, and energy harvesting.

AB - Studies in optics and acoustics have employed metamaterial lenses to achieve sub-wavelength localization, e.g. a recently introduced concept called ‘acoustojet’ which in simulations localizes acoustic energy to a spot smaller than λ/2. However previous experimental results on the acoustojet have barely reached λ/2-wide localization. Here we show, by simulations and experiments, that a sub-λ/2 wide localization can be achieved by translating the concept of a photonic jet into the acoustic realm. We performed nano- to macroscale molecular dynamics (MD) and finite element method (FEM) simulations as well as macroscale experiments. We demonstrated that by choosing a suitable size cylindrical lens, and by selecting the speed-of-sound ratio between the lens material(s) and the surrounding medium, an acoustic jet (‘acoustic sheet’) is formed with a full width at half maximum (FWHM) less than λ/2. The results show, that the acoustojet approach can be experimentally realized with easy-to-manufacture acoustic lenses at the macroscale. MD simulations demonstrate that the concept can be extended to coherent phonons at nanoscale. Finally, our FEM simulations identify some micrometer size structures that could be realized in practice. Our results may contribute to starting a new era of super resolution acoustic imaging: We foresee that jet generating constructs can be readily manufactured, since suitable material combinations can be found from nanoscale to macroscale. Tight focusing of mechanical energy is highly desirable in e.g. electronics, materials science, medicine, biosciences, and energy harvesting.

KW - SCATTERING

KW - LIGHT

UR - http://www.scopus.com/inward/record.url?scp=85063493706&partnerID=8YFLogxK

U2 - 10.1038/s41598-019-41335-6

DO - 10.1038/s41598-019-41335-6

M3 - Article

AN - SCOPUS:85063493706

VL - 9

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

IS - 1

M1 - 5189

ER -

ID: 33039544