Collisions of Single-Cycle and Subcycle Attosecond Light Pulses in a Nonlinear Resonant Medium

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6 Scopus citations


By numerically solving the system of Maxwell–Bloch equations, we have examined theoretically collisions of extremely short single-cycle and unipolar subcycle pulses in a nonlinear resonant medium under conditions that the light interacts coherently with the medium. The dynamics of the electric field of structures of light-induced polarization and inversion difference has been considered in the situation in which pulses are overlapped in the medium. We show that the states of the medium (to the right and to the left of the overlap region of the pulses) may differ. In particular, we show that polarization waves with different characteristics can exist in the regions of the medium that are located on opposite sides of the overlap region of the pulses. These waves travel in different directions and have different spatial frequencies.

Translated title of the contributionСтолкновение одноцикловых и субцикловых аттосекундных световых импульсов в нелинейной резонансной среде
Original languageEnglish
Pages (from-to)541-548
Number of pages8
JournalOptics and Spectroscopy (English translation of Optika i Spektroskopiya)
Issue number4
StatePublished - 1 Apr 2018

Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics


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