Stable switching among high-order modes in polariton condensates

Yongbao Sun, Yoseob Yoon, Saeed Khan, Li Ge, Mark Steger, Loren N. Pfeiffer, Ken West, Hakan E. Türeci, David W. Snoke, Keith A. Nelson

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11 Scopus citations

Abstract

We report multistate optical switching among high-order bouncing-ball modes ("ripples") and whispering-gallery modes ("petals") of exciton-polariton condensates in a laser-generated annular trap. By tailoring the diameter and power of the annular trap, the polariton condensate can be switched among different trapped modes, accompanied by redistribution of spatial densities and superlinear increase in the emission intensities, implying that polariton condensates in this geometry could be exploited for an all-optical multistate switch. A model based on non-Hermitian modes of the generalized Gross-Pitaevskii equation reveals that this mode switching arises from competition between pump-induced gain and in-plane polariton loss. The parameters for reproducible switching among trapped modes have been measured experimentally, giving us a phase diagram for mode switching. Taken together, the experimental result and theoretical modeling advance our fundamental understanding of the spontaneous emergence of coherence and move us toward its practical exploitation.

Original languageEnglish (US)
Article number045303
JournalPhysical Review B
Volume97
Issue number4
DOIs
StatePublished - Jan 22 2018

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Sun, Y., Yoon, Y., Khan, S., Ge, L., Steger, M., Pfeiffer, L. N., West, K., Türeci, H. E., Snoke, D. W., & Nelson, K. A. (2018). Stable switching among high-order modes in polariton condensates. Physical Review B, 97(4), [045303]. https://doi.org/10.1103/PhysRevB.97.045303