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A Y-shaped micro-nano structure

A micro-nano structure and rectangular technology, applied in the field of micro-nano optics, can solve the problems of high requirements for detection instruments and weak circular dichroism, and achieve the effect of large absorption and dissipation and less absorption and dissipation

Active Publication Date: 2021-07-13
上海谱尼医学检验实验室有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the circular dichroism of natural molecules is generally very weak, which requires high detection equipment. At this time, it is necessary to artificially manufacture some micro-nano metal structures to enhance the circular dichroism of natural molecules to reduce the difficulty of experimental detection. Therefore, a Micro-nano structures that can produce circular dichroism are necessary

Method used

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  • A Y-shaped micro-nano structure

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Such as figure 1 As shown, this embodiment discloses a Y-shaped micro-nano structure, including a rectangular rod 5, a first rectangular bar 1 and a second rectangular bar 2,

[0024] One end of the first rectangular bar 1 is vertically connected to one side of the rectangular bar 5, and the other end is connected with a second rectangular bar 2; there is an included angle not equal to 180° between the first rectangular bar 1 and the second rectangular bar 2, and the third One end of the rectangular bar 3 is vertically connected to the other side of the rectangular bar 5, and the other end is connected with a fourth rectangular bar 4; there is an included angle not equal to 180° between the third rectangular bar 3 and the fourth rectangular bar 4, and the second rectangular bar The end of the bar 2 is bent and has a first characteristic angle α with the plane where the rectangular rod 5 is located, and the end of the fourth rectangular bar 4 is bent and has a second cha...

Embodiment 2

[0035] Based on the Y-shaped micro-nano structure disclosed in Example 1, this embodiment further discloses the current diagram and absorption spectrum diagram when the first characteristic angle α is equal to 15° and the second characteristic angle β is equal to 75°.

[0036] Such as image 3 Shown is the current distribution diagram of the micro-nano structure of this embodiment.

[0037] image 3 (a) is the current distribution diagram of the micro-nano structure irradiated by the left-handed polarized light of the wavelength λ=1100nm mode, image 3 (b) is a current distribution diagram of the micro-nano structure of this embodiment irradiated by right-handed polarized light with a wavelength of λ=1100 nm. image 3 (c) is the current distribution diagram of the micro-nano structure irradiated by the left-handed polarized light of the wavelength λ=1350nm mode, image 3 (d) is a current distribution diagram of the micro-nano structure of this embodiment irradiated by right...

Embodiment 3

[0047] Based on a Y-shaped micro-nano structure disclosed in Embodiment 1, on the basis of Embodiment 1, this embodiment is provided with a fifth rectangular strip opposite to the second rectangular strip 2 on the first rectangular strip 1, and the third rectangular strip 3 is provided with a sixth rectangular strip opposite to the fourth rectangular strip 4 . It is used to enhance the coupling between the rectangular strips, thereby generating a stronger excitation electric field, enhancing absorption, and thereby enhancing circular dichroism.

[0048] In particular, a through hole is provided on the rectangular rod 5 . The micro-nano structure of this embodiment is made of noble metal materials, and through holes are set on the rectangular rods 5, so as to guide and change the circulation mode of the current, thereby leading to different electric field couplings, thereby changing the circular dichroism of this embodiment. In addition, the through hole is filled with a phase...

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Abstract

The present invention relates to the field of micro-nano optics technology, in particular to a Y-shaped micro-nano structure, comprising a rectangular bar, a first rectangular bar and a second rectangular bar, one end of the first rectangular bar is vertically connected to one side of the rectangular bar, and the other end is connected to There is a second rectangular bar, an angle not equal to 180° is formed between the first rectangular bar and the second rectangular bar, one end of the third rectangular bar is vertically connected to the other side of the rectangular bar, and a fourth rectangular bar is connected to the other end; There is an included angle not equal to 180° between the third rectangular bar and the fourth rectangular bar, the end of the second rectangular bar is bent, and has a first characteristic angle α with the plane where the rectangular bar is located, and the end of the fourth rectangular bar The bending has a second characteristic included angle β with the plane where the rectangular rod is located. Under the excitation of incident light, the micro-nano structure of the embodiment of the present application has a huge difference in absorption and dissipation when irradiated with left and right circularly polarized light, thereby generating a strong circular dichroic signal.

Description

technical field [0001] The invention relates to the technical field of micro-nano optics, in particular to a Y-shaped micro-nano structure. Background technique [0002] Circular dichroism (CD) refers to the phenomenon of different degrees of absorption of right-handed polarized light (hereinafter referred to as RCP) and left-handed polarized light (hereinafter referred to as LCP). The relationship between them is called circular dichroism, which is a spectroscopic method for determining the asymmetric structure of molecules. It is mainly used to determine the three-dimensional structure of proteins. In the field of molecular biology, it is mainly used to determine the three-dimensional structure of proteins. It can also be used to determine nucleic acids and polysaccharides. three-dimensional structure. [0003] However, the circular dichroism of natural molecules is generally very weak, which requires high detection equipment. At this time, it is necessary to artificially...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/30
CPCG02B5/3025G02B5/3058
Inventor 刘凯王天堃
Owner 上海谱尼医学检验实验室有限公司
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