St. Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg, 199034, Russia.
Max Planck Institute for the Science of Light, Staudtstraße 2, 91052, Erlangen, Germany.
Sci Rep. 2017 Sep 29;7(1):12467. doi: 10.1038/s41598-017-12267-w.
Creation, erasing and ultrafast control of population density gratings using few-cycle optical pulses coherently interacting with resonant medium is discussed. In contrast to the commonly used schemes, here the pulses do not need to overlap in the medium, interaction between the pulses is mediated by excitation of polarization waves. We investigate the details of the dynamics arising in such ultrashort pulse scheme and develop an analytical theory demonstrating the importance of the phase memory effects in the dynamics.
本文讨论了使用与共振介质相干相互作用的少周期光脉冲来创建、擦除和超快控制布居密度光栅。与常用方案不同，这里的脉冲不需要在介质中重叠，脉冲之间的相互作用由极化波的激发来介导。我们研究了这种超短脉冲方案中出现的动力学细节，并开发了一种分析理论，该理论证明了相位记忆效应对动力学的重要性。
