Photon crystal omnibearing full inverse film
A technology of photonic crystal and all-reflection film, which is applied in the field of reflective film, can solve the problems of large energy loss of light waves, low reflectivity, and decreased reflectivity.
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[0009] The present invention will be further described below in conjunction with accompanying drawing.
[0010] refer to figure 1 , the photonic crystal omni-directional all-reflection film is composed of a substrate and a dielectric film layer, and the dielectric film layer is composed of a periodic structure medium, which belongs to a one-dimensional photonic crystal structure. Two or more media with different refractive indices form a one-dimensional periodic film unit. Here we might as well assume that the two refractive indices are n 1 and n 2 medium composition, then there is
[0011]
[0012] and
[0013] n(x+a)=n(x) (2)
[0014] where h 1 + h 2 =a.
[0015] Suppose the wave vector of the incident light wave is k → = k x e → x + k y ...
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