Interferometric Determination of the Sound-Pressure-Induced Refractive Index Modulation of Ultrasonic Fields in Air
- 1Zentrum für Optische Technologien, Hochschule Aalen
- 2Technische Universität Darmstadt
- 3Deutsches Elektronen-Synchrotron DESY
- 4GSI Helmholtzzentrum für Schwerionenforschung
- 5Helmholtz-Institut Jena
marius [dot] foith [at] hs-aalen [dot] de
Quantitative characterization of high-intensity ultrasonic fields in air remains challenging, particularly in the nonlinear regime. Using an established, fast, contactless, two-dimensional interferometric method, we demonstrate its capability to reveal and quantify higher harmonic components of an acoustic field. Thus the presented method provides a practical tool for the quantitative investigation of nonlinear acoustic wave propagation in air.
@inproceedings{foith2026b23,
author = {Foith, Marius and Schuster, Regina and Doersam, Jan Helge and Soennecken, Sören and Schrödel, Yannick and Heyl, Christoph and Kupnik, Mario and Harth, Anne},
title = {{Interferometric Determination of the Sound-Pressure-Induced Refractive Index Modulation of Ultrasonic Fields in Air}},
booktitle = {DGaO-Proceedings 2026},
series = {DGaO-Proceedings},
eventtitle = {127. Jahrestagung der DGaO},
eventdate = {2026-05-27/2026-05-29},
venue = {Hamburg},
publisher = {Deutsche Gesellschaft für angewandte Optik e.V.},
year = {2026},
pages = {B23},
langid = {english},
doi = {10.83229/127-b023},
url = {https://dgao-proceedings.de/paper/127-b23}
}
127. Jahrestagung der DGaO · Hamburg · 2026
DOI: 10.83229/127-b023