Radiating filament light bullets
"Regularizing Aperiodic Cycles of Resonant Radiation in Filament Light Bullet" has been published in Physical Review Letters:
We demonstrate an up to now unrecognized and very effective mechanism which prevents filament collapse and allows persistent self-guiding propagation retaining a large portion of the optical energy on axis over unexpected long distances. The key ingredient is the possibility of continuously leaking energy into the normal dispersion regime via the emission of resonant radiation. The frequency of the radiation is determined by the dispersion dynamically modified by photogenerated plasma, thus allowing us to excite new frequencies in spectral ranges which are otherwise difficult to access.
C. Brèe, I. Babushkin, U. Morgner, A. Demircan (2017): Regularizing Aperiodic Cycles of Resonant Radiation in Filament Light Bullets, Pysical Review Letters 118, 163901 (2017)