410 research outputs found
Intrinsic bistability and dual-core dark solitons and vortices in exciton polariton condensates
We investigate a new kind of dark solitons and vortices that can exist in the
exciton-polariton condensates. These structures have discontinuity in the
excitonic part of the polaritonic field and exist due to an intrinsic
multiplicity of the solutions for the exciton density in the given optical
field. Reported solutions are characterized by two very distinct localization
scales, and hence are coined as dual-core dark solitons and vortices
Spectral wings of the fiber supercontinuum and the dark-bright soliton interaction
We present experimental and numerical data on the supercontinuum generation
in an optical fiber pumped in the normal dispersion range where the seeded dark
and the spontaneously generated bright solitons contribute to the spectral
broadening. We report the dispersive radiation arising from the interaction of
the bright and dark solitons. This radiation consists of the two weak
dispersing pulses that continuously shift their frequencies and shape the short
and long wavelength wings of the supercontinuum spectrum.Comment: supercontinuum, soliton, fiber; 6 page
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