Free-surface flow measurements by non-intrusive methods: a survey

G Gomit, L Chatellier, L David - Experiments in Fluids, 2022 - Springer
Measurement of the free surface shape and its evolution in time and/or in space is of great
interest in many engineering/research applications. The optical measurements of a liquid …

Multistable sheets with rewritable patterns for switchable shape-morphing

AS Meeussen, M van Hecke - Nature, 2023 - nature.com
Flat sheets patterned with folds, cuts or swelling regions can deform into complex three-
dimensional shapes under external stimuli,,,,,,,,,,,,,,,,,,,,,,–. However, current strategies require …

Topological water-wave structures manipulating particles

B Wang, Z Che, C Cheng, C Tong, L Shi, Y Shen… - Nature, 2025 - nature.com
Topological wave structures, such as vortices,,,,–, polarization textures,,,–and skyrmions,,,,,,–
, appear in various quantum and classical wave fields, including optics and acoustics. In …

Characterization of capillary waves: A review and a new optical method

RI Slavchov, B Peychev, AS Ismail - Physics of Fluids, 2021 - pubs.aip.org
The methods to study capillary waves have been reviewed together with the emerging
practical applications of theirs and new theoretical developments in the field. The focus is on …

Rotating curved spacetime signatures from a giant quantum vortex

P Švančara, P Smaniotto, L Solidoro, JF MacDonald… - Nature, 2024 - nature.com
Gravity simulators are laboratory systems in which small excitations such as sound or
surface waves, behave as fields propagating on a curved spacetime geometry. The analogy …

Quasinormal mode oscillations in an analogue black hole experiment

T Torres, S Patrick, M Richartz, S Weinfurtner - Physical Review Letters, 2020 - APS
The late stages of the relaxation process of a black hole are expected to depend only on its
mass and angular momentum and not on the details of its formation process. Inspired by …

[HTML][HTML] Background oriented schlieren technique with fast Fourier demodulation for measuring large density-gradient fields of fluids

T Shimazaki, S Ichihara, Y Tagawa - Experimental Thermal and Fluid …, 2022 - Elsevier
In order to measure the large density-gradient fields of fluids such as underwater shock
waves, we employed a fast Fourier demodulation called Fast Checkerboard Demodulation …

Experimental implementation of wave propagation in disordered time-varying media

B Apffel, S Wildeman, A Eddi, E Fort - Physical Review Letters, 2022 - APS
Here, we study and implement the temporal analog in time disordered sytems. A spatially
homogeneous medium is endowed with a time structure composed of randomly distributed …

[HTML][HTML] Guided elastic waves in a highly-stretched soft plate

A Delory, F Lemoult, A Eddi, C Prada - Extreme Mechanics Letters, 2023 - Elsevier
We study the propagation of guided elastic waves in a highly-stretched Ecoflex© plate, a
nearly-incompressible elastomer. The plate is subjected to a nearly-uniaxial stress with an …

Frequency conversion cascade by crossing multiple space and time interfaces

B Apffel, E Fort - Physical Review Letters, 2022 - APS
Time varying media recently emerged as promising candidates to fulfill the dream of
controlling the wave frequency without nonlinear effects. However, frequency conversion …