Experimental demonstration of epsilon-near-zero water waves focusing

Experimental demonstration of epsilon-near-zero water waves focusing

We explore an ϵ-near-zero analogue for water waves using deep water and shallow water domains to obtain different phase velocities. Being inherently non linear, water waves permit to inspect focusing of harmonically generated waves. Experimental measurements show cascade of focal spots up to the fou...

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Bibliographic Details
Published in:Applied physics letters Vol. 107; no. 1
Main Authors: Bobinski, T., Eddi, A., Petitjeans, P., Maurel, A., Pagneux, V.
Format: Journal Article
Language:English
Published: Melville American Institute of Physics 06-07-2015
Subjects:
Applied physics
Deep water
Domains
Fluid mechanics
Mechanics
Physics
Shallow water
Water waves
Wave propagation
Friction
Rayleigh's criterion
Refraction
Optical properties
Geometrical optics
Profilometry
Wave mechanics
Dispersion function
Lenses
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Summary:We explore an ϵ-near-zero analogue for water waves using deep water and shallow water domains to obtain different phase velocities. Being inherently non linear, water waves permit to inspect focusing of harmonically generated waves. Experimental measurements show cascade of focal spots up to the fourth harmonic, allowing sub wavelength focusing with respect to the first harmonic wavelength.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4926362