Metal dielectric composite optical thin film with adjustable refractive index
A technology of optical film and metal medium, applied in optics, optical components, instruments, etc., can solve the problems that conductive films do not have the transparent characteristics of optical films, optical films do not have conductive properties, etc., and achieve the effect of good conductivity
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[0040] Embodiment 1 provides a metal-dielectric composite optical film with adjustable refractive index. figure 1 It is a schematic cross-sectional view of the metal dielectric composite optical film with adjustable refractive index in Example 1 of the present invention, wherein the z coordinate direction represents the direction perpendicular to the film, and the x and y coordinate directions represent the film plane direction. like figure 1 As shown, the metal dielectric composite optical film with adjustable refractive index includes:
[0041] Metal strip 1, the width of the metal strip is w 1 , the thickness is d;
[0042] Dielectric strip 2, the width of the medium strip is w 2 , with a thickness of d.
[0043] Metal strips and dielectric strips are arranged alternately in the x-y plane to form a one-dimensional periodic structure with a period of P (P=w 1 +w 2 ), the periodic structure is the metal dielectric composite optical film, and the film thickness is d.
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