古斯-汉欣位移 Goos–Hänchen shift

The Goos–Hänchen effect (named after Hermann Fritz Gustav Goos (1883 – 1968) and Hilda Hänchen (1919 – 2013) is an optical phenomenon in which linearly polarized light undergoes a small lateral shift when totally internally reflected. The shift is perpendicular to the direction of propagation in the plane containing the incident and reflected beams. This effect is the linear polarization analog of the Imbert–Fedorov effect.

This effect occurs because the reflections of a finite sized beam will interfere along a line transverse to the average propagation direction.

参考资料:

https://en.wikipedia.org/wiki/Goos–Hänchen_effect

https://zh.wikipedia.org/wiki/古斯-汉欣位移