“Creating circulating currents of polaritons – vortices – and controlling them has been a long-standing challenge,” said leader of the team, theoretician Dr Elena Ostrovskaya, from the Research School of Physics and Engineering .
“We can now create a circulating flow of these hybrid particles and sustain it for hours.”
Polaritons are hybrid particles that have properties of both matter and light. The ability to control polariton flows in this way could aid the development of completely novel technology to link conventional electronics with new laser and fibre-based technologies.
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Ref: Creation of Orbital Angular Momentum States with Chiral Polaritonic Lenses | Phys. Rev. Lett. 113, 200404 – Published 12 November 2014 | Robert Dall, Michael D. Fraser, Anton S. Desyatnikov, Guangyao Li, Sebastian Brodbeck, Martin Kamp, Christian Schneider, Sven Höfling, and Elena A. Ostrovskaya
DOI: http://dx.doi.org/10.1103/PhysRevLett.113.200404
Quantum whirlpool created using spiral laser beam - Polaritons could greatly enhance laser and fiber technologies
