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https://doi.org/10.1038/s41467-019-11430-3
Title: | Ultrasonic super-oscillation wave-packets with an acoustic meta-lens | Authors: | Shen, Y.-X. Peng, Y.-G. Cai, F. Huang, K. Zhao, D.-G. Qiu, C.-W. Zheng, H. Zhu, X.-F. |
Issue Date: | 2019 | Publisher: | Nature Publishing Group | Citation: | Shen, Y.-X., Peng, Y.-G., Cai, F., Huang, K., Zhao, D.-G., Qiu, C.-W., Zheng, H., Zhu, X.-F. (2019). Ultrasonic super-oscillation wave-packets with an acoustic meta-lens. Nature Communications 10 (1) : 3411. ScholarBank@NUS Repository. https://doi.org/10.1038/s41467-019-11430-3 | Rights: | Attribution 4.0 International | Abstract: | The Schrödinger equation is a fundamental equation to describe the wave function of a quantum-mechanical system. The similar forms between the Schrödinger equation and the paraxial wave equation allow a paradigm shift from the quantum mechanics to classical fields, opening up a plethora of interesting phenomena including the optical super-oscillatory behavior. Here, we propose an ultrasonic meta-lens for generating super-oscillation acoustic wave-packets with different spatial momenta and then superimposing them to a diffraction-limit-broken spot, visually represented by the ring-shaped trapping of tiny particles. Moreover, based on the focused super-oscillation packets, we experimentally verify proof-of-concept super-resolution ultrasound imaging, opening up the arena of super-oscillation ultrasonics for advanced acoustic imaging, biomedical applications, and versatile far-field ultrasound control. © 2019, The Author(s). | Source Title: | Nature Communications | URI: | https://scholarbank.nus.edu.sg/handle/10635/210703 | ISSN: | 20411723 | DOI: | 10.1038/s41467-019-11430-3 | Rights: | Attribution 4.0 International |
Appears in Collections: | Elements Staff Publications |
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