Acoustic radiation force on small spheres ...
Type de document :
Compte-rendu et recension critique d'ouvrage
Titre :
Acoustic radiation force on small spheres due to transient acoustic fields
Auteur(s) :
Wang, Qing [Auteur]
State Key Laboratory of ASIC and System
Riaud, Antoine [Auteur]
State Key Laboratory of ASIC and System
Fudan University [Shanghai]
Zhou, Jia [Auteur]
State Key Laboratory of ASIC and System
Fudan University [Shanghai]
Gong, Zhixiong [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Acoustique Impulsionnelle & Magnéto-Acoustique Non linéaire - Fluides, Interfaces Liquides & Micro-Systèmes - IEMN [AIMAN-FILMS - IEMN]
Baudoin, Michael [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Acoustique Impulsionnelle & Magnéto-Acoustique Non linéaire - Fluides, Interfaces Liquides & Micro-Systèmes - IEMN [AIMAN-FILMS - IEMN]
State Key Laboratory of ASIC and System
Riaud, Antoine [Auteur]
State Key Laboratory of ASIC and System
Fudan University [Shanghai]
Zhou, Jia [Auteur]
State Key Laboratory of ASIC and System
Fudan University [Shanghai]
Gong, Zhixiong [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Acoustique Impulsionnelle & Magnéto-Acoustique Non linéaire - Fluides, Interfaces Liquides & Micro-Systèmes - IEMN [AIMAN-FILMS - IEMN]
Baudoin, Michael [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Acoustique Impulsionnelle & Magnéto-Acoustique Non linéaire - Fluides, Interfaces Liquides & Micro-Systèmes - IEMN [AIMAN-FILMS - IEMN]
Titre de la revue :
Physical Review Applied
Pagination :
044034
Éditeur :
American Physical Society
Date de publication :
2021-04
ISSN :
2331-7019
Mot(s)-clé(s) en anglais :
Acoustic interactions
Acoustic wave phenomena
Nonlinear acoustics
Ultrasonics
Acoustic wave phenomena
Nonlinear acoustics
Ultrasonics
Discipline(s) HAL :
Sciences de l'ingénieur [physics]
Résumé en anglais : [en]
Acoustic radiation force is a net force experienced by an object under the action of an acoustic wave. Most theoretical models require the acoustic wave to be periodic, if not purely monofrequency, and are therefore ...
Lire la suite >Acoustic radiation force is a net force experienced by an object under the action of an acoustic wave. Most theoretical models require the acoustic wave to be periodic, if not purely monofrequency, and are therefore irrelevant for the study of acoustic radiation force due to acoustic pulses. Here, we introduce the concept of finite-duration pulses, which is the most general condition to derive the acoustic radiation force. In the case of small spheres, we extend the Gor'kov formula to unsteady acoustic fields such as traveling pulses and interfering wave packets. In the latter case, our study suggests that the concept of acoustic contrast is also relevant to express the acoustic radiation force. For negative acoustic contrast particles, the acoustic trapping region narrows with shorter pulses, whereas positive contrast particles (such as biological cells) can fall in secondary traps when the pulse width deviates from an optimal value. This theoretical insight may help to improve the selectivity of pulsed acoustic tweezers.Lire moins >
Lire la suite >Acoustic radiation force is a net force experienced by an object under the action of an acoustic wave. Most theoretical models require the acoustic wave to be periodic, if not purely monofrequency, and are therefore irrelevant for the study of acoustic radiation force due to acoustic pulses. Here, we introduce the concept of finite-duration pulses, which is the most general condition to derive the acoustic radiation force. In the case of small spheres, we extend the Gor'kov formula to unsteady acoustic fields such as traveling pulses and interfering wave packets. In the latter case, our study suggests that the concept of acoustic contrast is also relevant to express the acoustic radiation force. For negative acoustic contrast particles, the acoustic trapping region narrows with shorter pulses, whereas positive contrast particles (such as biological cells) can fall in secondary traps when the pulse width deviates from an optimal value. This theoretical insight may help to improve the selectivity of pulsed acoustic tweezers.Lire moins >
Langue :
Anglais
Vulgarisation :
Non
Source :
Fichiers
- http://arxiv.org/pdf/2011.07841
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- https://hal.archives-ouvertes.fr/hal-03347649/document
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- https://hal.archives-ouvertes.fr/hal-03347649/document
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- document
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- WANG2021_PhysRevApplied.15.044034.pdf
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- 2011.07841
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