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.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Shen YX,Peng YG,Cai F,Huang K,Zhao DG,Qiu CW,Zheng H,Zhu XFdoi
10.1038/s41467-019-11430-3subject
Has Abstractpub_date
2019-07-30 00:00:00pages
3411issue
1issn
2041-1723pii
10.1038/s41467-019-11430-3journal_volume
10pub_type
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