Experimental observation of turbulent coherent structures in a superfluid of light

被引：15

作者：

Eloy, A. ^{[1
]}

Boughdad, O. ^{[1
]}

Albert, M. ^{[1
]}

Larre, P-E ^{[1
]}

Mortessagne, F. ^{[1
]}

Bellec, M. ^{[1
]}

Michel, C. ^{[1
]}

机构：

[1] Univ Cote dAzur, CNRS, INPHYNI, Biot, France

来源：

EPL | 2021年 / 134卷 / 02期

基金：

欧盟地平线“2020”;

关键词：

OPTICAL-WAVE TURBULENCE; SNAKE INSTABILITY; FLUID; CONDENSATION; FLOW;

D O I：

10.1209/0295-5075/134/26001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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. Copyright (C) 2021 EPLA

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页数：7

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