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Numerical solution of Maxwell equations by a finite-difference time-domain method in a medium with frequency and spatial dispersion

机译:频率和空间色散介质中麦克斯韦方程组的时域有限差分数值解

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摘要

We propose an alternative method of integration of Maxwell equations. This method is the generalization ofna finite-difference time-domain method with an auxiliary differential equation for the case of a linear opticalnmedium with a frequency dispersion and an arbitrary source of spatial dispersion. We apply this method to thenproblem of the propagation of short plane-wave linearly polarized light pulses in such a medium. It is shownnthat some features of their propagation are completely different from those that are generally recognized for thenlinear optical activity phenomenon. For example, in some cases an initially linearly polarized light pulse becomesnelliptically polarized during the propagation. This effect is more prominent in the front part of the pulse.
机译:我们提出了麦克斯韦方程组积分的另一种方法。该方法是对带有频率色散和任意空间色散源的线性光学钕的有限差分时域方法的推广,带有辅助微分方程。我们将这种方法应用于在这种介质中短平面波线性偏振光脉冲的传播问题。结果表明,其传播的某些特征与线性光学活动现象通常公认的特征完全不同。例如,在某些情况下,最初的线性偏振光脉冲在传播过程中变为椭圆偏振。这种效果在脉冲的前部更为明显。

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  • 来源
    《PHYSICAL REVIEW E》 |2012年第5期|1-6|共6页
  • 作者单位

    Faculty of Physics and International Laser Center of Lomonosov Moscow State University Moscow Russia;

    Faculty of Physics and International Laser Center of Lomonosov Moscow State University Moscow Russia;

    Faculty of Physics and International Laser Center of Lomonosov Moscow State University Moscow Russia;

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