All-optical flow control of a polariton condensate using nonresonant excitation

作者:Schmutzler Johannes*; Lewandowski Przemyslaw; Assmann Marc; Niemietz Dominik; Schumacher Stefan; Kamp Martin; Schneider Christian; Hoefling Sven; Bayer Manfred
来源:Physical Review B, 2015, 91(19): 195308.
DOI:10.1103/PhysRevB.91.195308

摘要

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.

  • 出版日期2015-5-11