Chen Ze, Zhu Yifei, Zhang Xiaoguang, Zhang Hu, Zhen Weiming
Opt Lett. 2024 Sep 15;49(18):5200-5203. doi: 10.1364/OL.537615.
We analyze the role of the energy flow coefficient in beam shifts and develop the theory of the angle spectrum method to calculate the beam shifts of polarized beam reflection and transmission. By applying the self-consistency between the law of conservation of momentum and the angular Goos-Hänchen (GH) shift, we prove the necessity of the correcting energy flow coefficient of the transmitted light fields. For the air-glass interface, we find that the influence of the energy flow coefficient on the angular GH shift is very pronounced in the case of close grazing.
我们分析了能量流系数在光束位移中的作用，并发展了角谱法理论来计算偏振光束反射和透射的光束位移。通过应用动量守恒定律与角古斯 - 汉欣（GH）位移之间的自洽性，我们证明了修正透射光场能量流系数的必要性。对于空气 - 玻璃界面，我们发现在近掠射情况下，能量流系数对角GH位移的影响非常显著。
