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arXiv physics/0007073physics.optics
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超快脉冲的消光定理

Extinction theorem for ultrafast pulses

Cs. Benedek, M. G. Benedict, T. Serenyi

摘要:

我们建议用消光定理来描述超短脉冲通过边界的反射和透射,而不是使用频率依赖的折射率。当脉冲宽度与弛豫时间相当时,特别是当载波频率接近吸收线时,结果与传统方法有很大差别。我们比较了这两种方法使用的数据GaAs在红外域。

英文摘要:

Instead of using frequency dependent refractive index, we propose to use the extinction theorem to describe reflection and transmission of an ultrashort pulse passing through the boundary. When the duration of the pulse is comparable with the relaxation time, the results differ significantly from those given by the traditional method, especially if the carrier frequency is close to an absorbtion line. We compare the two approaches using the data of GaAs in the infrared domain.

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