Optically Controlled Orbital Angular Momentum Generation in a Polaritonic Quantum Fluid.

Optically Controlled Orbital Angular Momentum Generation in a Polaritonic Quantum Fluid.
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极化量子流体中光控轨道角动量的产生

DOI:
10.1103/physrevlett.119.113903
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发表时间:
2017
影响因子:
8.6
通讯作者:
R. Binder
R. Binder
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
S. M. H. Luk;N. H. Kwong;P. Lewandowski;S. Schumacher;R. Binder

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光的轨道角动量(OAM)的应用范围从下一代光通信系统到粒子的光学成像和光学操纵。在这里,我们提出了一个微米大小的半导体源,发射光与预定义的OAM对。这个源是基于极化激子量子流体。我们展示了如何在这个系统中调制不稳定性可以控制和利用自发形成的OAM对不存在于泵浦激光源。一旦创建,OAM状态在量子流体中表现出奇异的流动模式,其特征在于生成-湮灭对。这些只能发生在开放的系统中,而不是在平衡冷凝物中,与公认的涡旋-反涡旋对相反。
Applications of the orbital angular momentum (OAM) of light range from the next generation of optical communication systems to optical imaging and optical manipulation of particles. Here we propose a micron-sized semiconductor source that emits light with predefined OAM pairs. This source is based on a polaritonic quantum fluid. We show how in this system modulational instabilities can be controlled and harnessed for the spontaneous formation of OAM pairs not present in the pump laser source. Once created, the OAM states exhibit exotic flow patterns in the quantum fluid, characterized by generation-annihilation pairs. These can only occur in open systems, not in equilibrium condensates, in contrast to well-established vortex-antivortex pairs.
自制挂毯:大自然中图案的形成
DOI: 10.5860/choice.36-5132
发表时间: 1999
期刊: Physical Review B
影响因子: 3.7
作者:
["P. Ball
通讯作者: ["P. Ball