Volume 134, Number 2, April 2021
|Number of page(s)||7|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||12 July 2021|
Experimental observation of turbulent coherent structures in a superfluid of light(a)
Université Côte d'Azur, CNRS, INPHYNI - France
Received: 22 December 2020
Accepted: 1 June 2021
We experimentally explore the rich variety of nonlinear coherent structures arising in a turbulent flow of superfluid light past an obstacle in an all-optical configuration. The different hydrodynamic regimes observed are organised in a unique phase diagram involving the velocity of the flow and the diameter of the obstacle. Then, we focus on the vortices nucleated in the wake of the obstacle by investigating their intensity profile and the dependence of the radius of their core on the healing length. Our results pave the way for further investigations on turbulence in photonic superfluids and provide versatile experimental tools for simulating quantum transport with nonlinear light.
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