Gao Mingsheng, Deng Dongmei
Opt Express. 2020 Mar 30;28(7):10531-10541. doi: 10.1364/OE.381789.
Expressions of Goos-Hänchen and Imbert-Fedorov shifts of rotational 2-D finite energy Airy beams are introduced in this paper. The influences of the second-order terms of the reflection coefficient on the spatial Goos-Hänchen shift (GHS) and spatial Imbert-Fedorov shift (IFS) of rotational 2-D finite energy Airy beams are theoretically and numerically investigated at the surface between air and weakly absorbing medium for the first time. It is found that the axial symmetry of the initial field of beams has huge influences on GHS and IFS and both of the GHS and IFS can be controlled by adjusting the rotation angle of the initial field distribution.
本文介绍了旋转二维有限能量艾里光束的古斯-汉欣位移和因伯特-费多罗夫位移的表达式。首次在空气与弱吸收介质的界面处，从理论和数值上研究了反射系数的二阶项对旋转二维有限能量艾里光束的空间古斯-汉欣位移（GHS）和空间因伯特-费多罗夫位移（IFS）的影响。研究发现，光束初始场的轴对称性对GHS和IFS有巨大影响，并且可以通过调整初始场分布的旋转角度来控制GHS和IFS。
