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

  title={Optically Controlled Orbital Angular Momentum Generation in a Polaritonic Quantum Fluid.},
  author={Samuel M.H. Luk and Nai H. Kwong and P. Lewandowski and Stefan Schumacher and Rudolf H. Binder},
  journal={Physical review letters},
  volume={119 11},
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… 

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