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 contribution||Столкновение одноцикловых и субцикловых аттосекундных световых импульсов в нелинейной резонансной среде|
|Number of pages||8|
|Journal||Optics and Spectroscopy (English translation of Optika i Spektroskopiya)|
|Publication status||Published - 1 Apr 2018|
Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics