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Professor Dmitry Krizhanovskii
Professor Maurice Skolnick
Dr Maksym Sich
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Project overview
In this work we demonstrate for the first time bright 2D polariton solitons. The polariton solitons are localised nondiffracting wavepackets. They travel at speeds of approximately 1.7 µm/ps, and their size is of the order of 5 µm with corresponding broad spectrum in energy-momentum space. Video below shows a reconstruction of the motion of the soliton.
Dissipative polariton solitons are triggered and sustained by input lasers. The ‘Pump’ laser is focused onto a large spot (100 µm), whilst the pulsed writing beam is focused onto a small region (7 µm). Each pulse of the writing beam triggers a soliton which travels within the pump spot, as shown on the figure.
Scheme of soliton excitation
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