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Goos-Hänchen shifts in frustrated total internal reflection studied with wave-packet propagation

热2 zhoulm 添加于 2010-4-7 18:00 | 2540 次阅读 | 0 个评论

作者
Chen X, Li C-F, Wei R-R, Zhang Y
摘要
We have investigated the Goos-Hänchen (GH) shifts in frustrated total internal reflection (FTIR) studied with wave-packet propagation. In the first-order approximation of the transmission coefficient, the GH shift is exactly the expression given by a stationary phase method, thus saturating an asymptotic constant in two different ways depending on the angle of incidence. Taking the second-order approximation into account, the GH shift does not saturate with increasing gap width when the small beam size is used. The GH shift increases by decreasing the beamwidth at the small incidence angles, while for the large incidence angles it reveals a strong decrease by decreasing the beamwidth. These phenomena offer the better understanding of the GH shift and tunneling delay time in FTIR.
详细资料
- 文献种类: Journal Article
- 期刊名称: Physical Review A
- 期刊缩写: Phys. Rev. A
- 期卷页: 2009年第80卷第1期
- ISBN: 1050-2947
学科领域自然科学 » 物理学
相关链接 DOI URL

【原创】

用波群传播的方法研究了受抑全反射时的GH位移，发现：
1.透射系数的一阶近似就是用静态相位法得到的GH位移的表达式，并且随着随着入射角有两种方法到达渐近线饱和常数。
2.考虑二阶近似，会得到新的情况。

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