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

Inactive Publication Date: 2018-04-13
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, conventional optical films do not have conductive properties, and conductive films do not have the transparent properties of optical films. Although a few transparent electrode materials can have both transparent and conductive properties, their electrical conductivity is far less than that of metal films.

Method used

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  • Metal dielectric composite optical thin film with adjustable refractive index
  • Metal dielectric composite optical thin film with adjustable refractive index
  • Metal dielectric composite optical thin film with adjustable refractive index

Examples

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Embodiment 1

[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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Abstract

The invention discloses a metal dielectric composite optical thin film with an adjustable refractive index. The composite optical thin film comprises metal strips and dielectric strips, wherein the metal strips and the dielectric strips are arranged by turns to form a periodical structure; and the adjacent metal strips and the dielectric strip located between the adjacent metal strips form a metal-dielectric-metal waveguide structure. The refractive index of the metal dielectric composite optical thin film with an adjustable refractive index is adjustable, the working band is adjustable, and the conductivity is good.

Description

technical field [0001] The invention belongs to the technical field of optical devices, and in particular relates to a metal-medium composite optical film with adjustable refractive index. Background technique [0002] The development of optical thin film technology has been very mature so far, and has been widely used in various aspects from daily life to industrial production to cutting-edge scientific research. Its most common uses include anti-reflection, anti-reflection, filtering, transparent electrodes, etc. [0003] The refractive index of conventional optical films is a definite value and cannot be adjusted flexibly. Many application scenarios have strict requirements on the refractive index of optical films. As a result, conventional optical films cannot meet the needs of some application scenarios, and more complex solutions are required to achieve the corresponding functions. For example, an ideal anti-reflection optical film on the air-medium interface only n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/00
CPCG02B5/00
Inventor 韦欣胡晓斌李健宋国峰
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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