Stable switching among high-order modes in polariton condensates
Name
PhysRevB.97.045303.pdf
Size
1.36 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Khan, Saeed
Ge, Li
Steger, Mark
Pfeiffer, Loren N.
West, Ken
Türeci, Hakan E.
Snoke, David W.
Sun, Yongbao
Yoon, Yoseob
Nelson, Keith Adam
Date Issued
January 2018
Journal
Physical Review B
Publisher
American Physical Society
Citation
Sun, Yongbao et al. "Stable switching among high-order modes in polariton condensates." Physical Review B 97, 4 (January 2018): 045303 © 2018 American Physical Society
Version
Final published version
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.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Terms of Use
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.97.045303
