The semiclassical density-matrix theory with carrier intraband relaxation broading is described.

本文简明地描述了由载流子带内弛豫加宽的半经典的密度矩阵理论。

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The physical process of frequency chirped Gaussian pulses broading induced by the group- velocity dispersion has been studied.

研究了线性光纤中色散导致初始频率啁啾的高斯光脉冲展宽的详细物理过程。

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Yet multiple studies, looking carefully and objectively at the data, indicate that all or nearly all of the rise in autism cases is due to increasing diagnoses, which in turn is due to multiple factors: a dramatically broading of the definition of autism in the early 1990s, a greater awareness of the condition, and a greater willingness of doctors and parents to accept the diagnosis.

FORBES: Congress Holds An Anti-Vaccination Hearing