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Travelling Waves

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A wave is a disturbance that propagates from its source, repeating itself periodically, and is typically associated with simple harmonic motion. Mechanical waves are governed by Newton's laws and require a medium to travel. A medium is a substance in which a mechanical wave propagates, and the medium produces an elastic restoring force when it is deformed.
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When a wave propagates from one medium to another, part of it may get reflected in the first medium, and part of it may get transmitted to the second medium. In such a case, the interface of the two mediums can be considered as a boundary that is neither fixed nor free.
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Home
The 2026 Guided Acoustic Waves Roadmap.

Home
The 2026 Guided Acoustic Waves Roadmap.

Related Experiment Video

Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations

Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations

Published on: August 21, 2018

The 2026 guided acoustic waves roadmap.

Hubert J Krenner¹, Paulo V Santos², Christoph Westerhausen³

¹Physikalisches Institut, Universität Münster, Wilhelm-Klemm-Straße 10, Münster 48149, Germany.

Journal of Physics D: Applied Physics

|March 4, 2026

View abstract on PubMed

Summary

This summary is machine-generated.

Guided elastic waves, including surface acoustic wave (SAW) and bulk acoustic wave devices, are crucial technologies. This review updates the 2019 roadmap, examining the field's current status and future challenges.

Keywords:

guided acoustic waves phononics surface acoustic waves

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Area of Science:

Physics
Materials Science
Engineering

Background:

Surface acoustic wave (SAW) and bulk acoustic wave devices have been key technologies for over 50 years.
Guided elastic waves are a cross-disciplinary technology with applications ranging from quantum technologies to life sciences.

Purpose of the Study:

To provide an updated overview of the field of guided elastic waves.
To identify current challenges and future prospects in guided elastic wave research.

Main Methods:

Review of recent advancements in guided elastic wave research.
Analysis of the expanded applications spectrum since the 2019 roadmap.

Main Results:

The field of guided elastic waves has significantly expanded in scope and application.

New developments span from quantum technologies to condensed matter physics.

Conclusions:

Guided elastic waves remain a vital and evolving technology.
Further research is needed to address emerging challenges and opportunities.