Micro-nano structure capable of distinguishing left-handed polarized light and right-handed polarized light

A micro-nano structure and polarized light technology, applied in the field of micro-nano optics, can solve the problem of indistinguishable left-handed polarized light and right-handed polarized light, and achieve the effect of reducing reflection and reducing service life

Inactive Publication Date: 2019-02-01
中山科立特光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above problems, the purpose of the present invention is to solve the

Method used

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  • Micro-nano structure capable of distinguishing left-handed polarized light and right-handed polarized light
  • Micro-nano structure capable of distinguishing left-handed polarized light and right-handed polarized light
  • Micro-nano structure capable of distinguishing left-handed polarized light and right-handed polarized light

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Embodiment 1

[0022] In order to solve the problem of indistinguishable right-handed and left-handed, this embodiment discloses a micro-nano structure that can distinguish left-handed polarized light from right-handed polarized light, such as figure 1 As shown, the micro-nano structure includes from bottom to top: base layer 1, chiral unit 2 and graphene layer 3; The upper surface of the unit 2 is connected with the graphene layer 3 , and the lower surface is embedded in the base layer 1 .

[0023] in particular:

[0024] In this embodiment, the micro-nano structure utilizes the graphene layer 3 to absorb incident light. Under the excitation of the incident light, the chiral unit 2 responds to the incident light, and a near-field coupling is formed between the incident light and the chiral unit 2 to generate an excitation electric field. The magnetic dipoles and electric dipoles in different directions are formed on the chiral unit 2, which produce different absorptions for left-handed pol...

Embodiment 2

[0028] Based on the micro-nano structure disclosed in Example 1, this example discloses a micro-nano structure that can distinguish left-handed polarized light from right-handed polarized light. The difference from Example 1 is that the chiral unit 2 in this example has the same shape The metallic structures are arranged chiralally.

[0029] Specifically: if figure 2 with image 3 As shown, the chiral arrangement shape of the metal structure is helical. The metal structure can be a symmetrical structure such as a circle, a rectangle, or a triangle, or a chiral structure. When the incident light irradiates the micro-nano structure of the embodiment of the present application, under the excitation of the incident light, the chiral unit 2 responds to it, and a near-field coupling is formed between the incident light and the chiral unit 2, generating a strong excitation electric field, and the chiral unit 2 responds to it. Magnetic dipoles and electric dipoles in different dir...

Embodiment 3

[0032] Based on the micro-nano structure disclosed in Example 1 that can distinguish left-handed polarized light from right-handed polarized light, this embodiment discloses a preparation method of a micro-nano structure that can distinguish left-handed polarized light from right-handed polarized light. Specific steps are as follows:

[0033] First, soak the ITO glass in anhydrous alcohol for no less than 30 minutes, then dry it for later use, and then vapor-deposit a silicon dioxide film on the spare glass base by physical vapor deposition to form the base layer 1, and then use the ion implantation method to inject the chiral unit 2 It is evenly injected into the base layer 1 according to a fixed periodic arrangement, and finally, the graphene is evenly spread on the base layer 1 by a wet transfer method, and the microstructure that can distinguish left-handed polarized light and right-handed polarized light in this embodiment can be obtained. nanostructure.

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Abstract

The invention relates to the technical field of micro-nano optics, and particularly relates to a micro-nano structure capable of distinguishing left-handed polarized light and right-handed polarized light. By using a combination of a base layer, a chiral unit, and a graphene layer, the chiral unit is embedded in the base layer, so that the chiral unit is in contact with the graphene layer and thebase layer. By using the strong light absorption capability of the graphene layer, incident light is maximally absorbed to the chiral unit, the reflection of incident light is reduced, and the servicelife of the chiral unit is prevent from the decrease because of the perpendicular incidence of the incident light. Different forms of electric dipoles and magnetic dipoles is formed on the chiral unit after the chiral unit absorbed incident light through the graphene layer, thus, the left-handed polarized light and right-handed polarized light in the incident light are differently absorbed, so that the distinguishing of the left-handed polarized light and the right-handed polarized light is achieved. By analyzing the absorption spectrogram of the micro-nano structure of the embodiment of theapplication, the kinds of the left-handed polarized light and the right-handed polarized light in the incident light can be distinguished.

Description

technical field [0001] The invention relates to the technical field of micro-nano optics, in particular to a micro-nano structure capable of distinguishing left-handed polarized light and right-handed polarized light. Background technique [0002] Polarized light is light whose electric vector vibrates in a fixed manner with respect to the direction of propagation. According to the trajectory formed by the end of the electric vector during the propagation of light, polarized light is mainly divided into linearly polarized light and elliptically polarized light. According to the propagation direction, it is divided into left-handed polarized light and right-handed polarized light. At present, natural light and polarized light can be distinguished through the analyzer, but left-handed polarized light and right-handed polarized light cannot be distinguished by naked eyes and analyzers in the experiment. Contents of the invention [0003] In view of the above problems, the pu...

Claims

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Application Information

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IPC IPC(8): G02F1/01
CPCG02F1/0136
Inventor 不公告发明人
Owner 中山科立特光电科技有限公司
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