Generating Airy surface acoustic waves with dislocated interdigital transducers,Lab on a Chip

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Generating Airy surface acoustic waves with dislocated interdigital transducers
Lab on a Chip ( IF 6.1 ) Pub Date : 2024-09-10 , DOI: 10.1039/d4lc00371c
Zongjun Ma _{1,

2,

3} , Delai Kong _{1,

2,

3} , Wenfeng Cai _{1,

2,

3} , Zhenming Wang _{1,

2,

3} , Ming Cheng _{1,

2,

3} , Zixuan Wu _{1,

2,

3} , Xueqian Zhao _{1,

2,

3} , Mengjia Cen _{1,

2,

3} , Haitao Dai ₄ , Shifeng Guo ₅ , Yan Jun Liu _{1,

2,

3}

Affiliation

We propose an innovative design for interdigital transducers (IDTs), enabling phase modulation of surface acoustic waves (SAWs) with a dislocated electrode structure. By designing the size and arrangement of these dislocated IDTs, a novel type of Airy SAWs can be generated, exhibiting self-accelerating, self-bending, and self-healing characteristics. The acceleration of the generated Airy SAW is 0.081 cm⁻¹. Furthermore, particles and bubbles can be precisely manipulated using the generated Airy SAW. The proposed dislocated IDTs could be used for generation of many other types of SAWs, hence holding great promise for applications including SAW shaping, particle manipulation/sorting, and acoustic sensing/detection.

中文翻译：

使用位错指间换能器产生艾里表面声波

我们提出了一种指间换能器（IDT）的创新设计，能够对电极结构错位的表面声波（SAW）进行相位调制。通过设计这些位错 IDT 的大小和排列，可以产生一种新型的 Airy SAW，表现出自加速、自弯曲和自愈的特性。生成的 Airy SAW 的加速度为 0.081 ^cm-1。此外，可以使用生成的 Airy SAW 精确控制颗粒和气泡。所提出的位错 IDT 可用于生成许多其他类型的 SAW，因此在包括 SAW 整形、粒子操作/分选和声学传感/检测在内的应用中具有很大的前景。

更新日期：2024-09-10

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