Optical Calibration of Holographic Acoustic Tweezers
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arXiv
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| Auteurs principaux: | , , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866910372900896768 |
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| author | Marrara, Sonia Ciriza, David Bronte Magazzu, Alessandro Caruso, Roberto Lupo, Giuseppe Saija, Rosalba Foti, Antonino Gucciardi, Pietro G. Mandanici, Andrea Marago, Onofrio M. Donato, Maria Grazia |
| author_facet | Marrara, Sonia Ciriza, David Bronte Magazzu, Alessandro Caruso, Roberto Lupo, Giuseppe Saija, Rosalba Foti, Antonino Gucciardi, Pietro G. Mandanici, Andrea Marago, Onofrio M. Donato, Maria Grazia |
| contents | Recently, acoustic tweezers based on an array of ultrasonic transducers have been reported taking inspiration from holographic optical tweezers. In the latter technique, the calibration of the optical trap is an essential procedure to obtain the trap stiffnesses. On the contrary, in the case of acoustic tweezers the calibration of the acoustic forces is seldom carried out. To cover this gap, in this work, we adapt the calibration protocols employed in optical tweezers to acoustic tweezers based on arrays of ultrasonic transducers. We measure trap stiffnesses in the mN/m range that are consistent with theoretical estimates obtained by calculations of the acoustic radiation forces based on the Gorkov potential. This work gives a common framework to the optical and acoustic manipulation communities, paving the way to a consistent calibration of hybrid acoustooptical setups. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_09286 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Optical Calibration of Holographic Acoustic Tweezers Marrara, Sonia Ciriza, David Bronte Magazzu, Alessandro Caruso, Roberto Lupo, Giuseppe Saija, Rosalba Foti, Antonino Gucciardi, Pietro G. Mandanici, Andrea Marago, Onofrio M. Donato, Maria Grazia Optics Applied Physics Recently, acoustic tweezers based on an array of ultrasonic transducers have been reported taking inspiration from holographic optical tweezers. In the latter technique, the calibration of the optical trap is an essential procedure to obtain the trap stiffnesses. On the contrary, in the case of acoustic tweezers the calibration of the acoustic forces is seldom carried out. To cover this gap, in this work, we adapt the calibration protocols employed in optical tweezers to acoustic tweezers based on arrays of ultrasonic transducers. We measure trap stiffnesses in the mN/m range that are consistent with theoretical estimates obtained by calculations of the acoustic radiation forces based on the Gorkov potential. This work gives a common framework to the optical and acoustic manipulation communities, paving the way to a consistent calibration of hybrid acoustooptical setups. |
| title | Optical Calibration of Holographic Acoustic Tweezers |
| topic | Optics Applied Physics |
| url | https://arxiv.org/abs/2403.09286 |