Journal
PHYSICAL REVIEW LETTERS
Volume 115, Issue 25, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.115.256401
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Funding
- Leverhulme Trust Grant [PRG-2013-339, RPG-2012-481]
- EPSRC Grant [EP/J007544/1]
- ERC Advanced Grant [EXCIPOL 320570]
- Government of the Russian Federation [074-U01]
- EU network project LIMACONA [612600]
- EPSRC [EP/J007544/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/J007544/1] Funding Source: researchfish
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We report propagating bound microcavity polariton soliton arrays consisting of multipeak structures either along (x) or perpendicular (y) to the direction of propagation. Soliton arrays of up to five solitons are observed, with the number of solitons controlled by the size and power of the triggering laser pulse. The breakup along the x direction occurs when the effective area of the trigger pulse exceeds the characteristic soliton size determined by polariton-polariton interactions. Narrowing of soliton emission in energy-momentum space indicates phase locking between adjacent solitons, consistent with numerical modeling which predicts stable multihump soliton solutions. In the y direction, the breakup originates from inhomogeneity across the wave front in the transverse direction which develops into a stable array only in the solitonic regime via phase-dependent interactions of propagating fronts.
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