In this paper co-polarization spatial Goos–Hnchen (GH) shifts (Δ_ss/λ and Δ_pp/λ) of periodic chiral metamaterials are investigated. The numerical results show that the enhancement of GH shifts is affected by the incident frequency, the incident angle, the period and the volume fraction of the dispersive chiral layer. For s polarized waves, GH shifts are always enhanced negatively with one Brewster angle, but two Brewster angles arise when the period is large and specific. For p polarized waves there are two Brewster angles in general, at which the GH shifts can be greatly enhanced with negative and positive peaks. More Brewster angles appear when the period is sufficiently large and specific. The transition of negatively and positively enhanced GH shifts is sensitive to large frequencies, and can be tuned by changing the frequency slightly. The transition can also be adjusted by varying the volume fraction of the dispersive chiral layer and the period of the structure.

在本文中，共极化空间 Goos–Hnchen (GH) 位移（Δ _ss / λ和 Δ _pp / λ) 的周期性手性超材料进行了研究。数值结果表明，GH位移的增强受入射频率、入射角、周期和色散手征层体积分数的影响。对于 s 偏振波，GH 位移总是随着一个布儒斯特角而负增强，但是当周期大且特定时会出现两个布儒斯特角。对于 p 偏振波，一般有两个布鲁斯特角，在这些角处，GH 位移可以通过负峰和正峰大大增强。当周期足够大和特定时，会出现更多的布鲁斯特角。负增强和正增强 GH 偏移的过渡对大频率很敏感，可以通过稍微改变频率来调整。