CAJ | 학술논문

考虑到位于两物质界面上的Metasurface对光线传播行为的影响,从费马原理和边界条件连续两种角度出发,推导了可用于相位突变界面的广义反射与折射定律.该定律在界面对光波的相位改变量为零的情况下,回归为通常的反射定律和折射定律.利用广义的折射定律和反射定律讨论了介质折射率、界面上的相位梯度等因素对光传播行为的影响,发现利用广义的折射定律和反射定律很容易实现反常反射和反常折射行为,并给出了出现反常反射和反常折射的条件,以此为基础可以实现对光波的随意控制.依据广义的折射定律和反射定律分析了一维相位掩模板对光场传播行为的影响.
고필도위우량물질계면상적Metasurface대광선전파행위적영향,종비마원리화변계조건련속량충각도출발,추도료가용우상위돌변계면적엄의반사여절사정률.해정률재계면대광파적상위개변량위령적정황하,회귀위통상적반사정률화절사정률.이용엄의적절사정률화반사정률토론료개질절사솔、계면상적상위제도등인소대광전파행위적영향,발현이용엄의적절사정률화반사정률흔용역실현반상반사화반상절사행위,병급출료출현반상반사화반상절사적조건,이차위기출가이실현대광파적수의공제.의거엄의적절사정률화반사정률분석료일유상위엄모판대광장전파행위적영향.
@@@@The general reflection and refraction laws at the metasurface with an abrupt phase shift are derived by two methods based on Fermat’s principle and the boundary conditions of continuity, it is found that one or two critical angles for total internal reflection exist not only when a light beam impinges on the optical sparse material from the optical denser material, but also when a light beam spreads from the optical sparse material to the optical denser material. Anomalous reflection and refraction, such as, negative reflection and negative refraction may occur when a light beam passes through the metasurface, and the conditions of their occurrence are given. Finally, a kind of metasurface based on one-dimensional phase mask is designed to control the light propagation.