Surface concavity enhances ultrasonic transmission from air to liquid

Abstract

We reveal a unique effect in which the ultrasonic transmission efficiency from the air to the liquid is significantly enhanced by the liquid surface concavity induced by ultrasound. The surface concavity acts as a special geometry-controllable transducer to transmit ultrasound into the liquid, where the sound transmission efficiency exhibits a relationship with the concavity depth: τd2.

Graphical abstract: Surface concavity enhances ultrasonic transmission from air to liquid

Supplementary files

Article information

Article type
Communication
Submitted
12 Dec 2025
Accepted
07 Feb 2026
First published
12 Feb 2026

Soft Matter, 2026, Advance Article

Surface concavity enhances ultrasonic transmission from air to liquid

X. Tang, L. Zhang, Z. Hou, M. Zhou, Y. Jiang and D. Zang, Soft Matter, 2026, Advance Article , DOI: 10.1039/D5SM01236H

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