All-optical flow control of a polariton condensate using nonresonant excitation
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The precise adjustment of the polariton condensate flow under incoherent excitation conditions is an indispensable prerequisite for polariton-based logic gate operations. In this report, an all-optical approach for steering the motion of a polariton condensate using only nonresonant excitation is demonstrated. We create arbitrarily shaped functional potentials by means of a spatial light modulator, which allow for tailoring the condensate state and guiding a propagating condensate along reconfigurable pathways. Additional numerical simulations confirm the experimental observations and elucidate the interaction effects between background carriers and polariton condensates.
Schmutzler , J , Lewandowski , P , Aßmann , M , Niemietz , D , Schumacher , S , Kamp , M , Schneider , C , Höfling , S & Bayer , M 2015 , ' All-optical flow control of a polariton condensate using nonresonant excitation ' , Physical Review. B, Condensed matter and materials physics , vol. 91 , no. 19 . https://doi.org/10.1103/PhysRevB.91.195308
Physical Review. B, Condensed matter and materials physics
© 2015 American Physical Society. Archived in accordance with the publisher's reuse policy. Originally published by Physical Review B, 91(19), here: http://journals.aps.org/prb/abstract/10.1103/PhysRevB.91.195308
DescriptionThe Dortmund group acknowledges support from the Deutsche Forschungsgemeinschaft (Grants 1549/18-1 and SFB TRR 142). The Paderborn group is grateful for financial support from the Deutsche Forschungsgemeinschaft (GRK 1464, SFB TRR 142, and SCHU 1980/5-1) and acknowledges a grant for computing time from the PC2 Paderborn Center for Parallel Computing. The group at Würzburg University acknowledges support from the State of Bavaria. S. H. acknowledges support by the Royal Society and the Wolfson Foundation.
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