Artificial microstructure construction method and optical system comprising artificial microstructure

A technology of artificial microstructure and construction method, which is applied in the field of coherent optics and can solve problems that are rarely involved.

Active Publication Date: 2020-06-02
SUZHOU UNIV
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Problems solved by technology

At present, artificial microstructures have been able to effectively control the amplitude, phase and polarization state of the light field at the sub-wavelength scale, which has high application value, such as realizing polarized optical anti-counterfeiting, achromatic lenses, high-saturation structural colors, etc. , and so far, artificial microstructures have rarely been involved in the regulation of the coherence dimension of the light field.

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  • Artificial microstructure construction method and optical system comprising artificial microstructure
  • Artificial microstructure construction method and optical system comprising artificial microstructure
  • Artificial microstructure construction method and optical system comprising artificial microstructure

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0032] Such as figure 1 Shown, be the artificial microstructure construction method in the preferred embodiment of the present invention, this method comprises the following steps:

[0033] S10, according to the coherence of the partially coherent light to be generated, determine its phase at each cell position of the corresponding artificial microstructure region.

[0034] Wherein, the cell position is the spatial arrangement position of each nano-cell that constructs the artificial microstructure.

[0035] According to the generation conditions of partially coherent light, the range of the random phase corresponding to the partially coherent light to be generated determines the...

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Abstract

The invention discloses an artificial microstructure construction method and an optical system comprising an artificial microstructure. The method comprises the following steps: S10, determining the phase of to-be-generated partially coherent light at each cellular position of a corresponding artificial microstructure area according to the coherence of the to-be-generated partially coherent light;S20, calculating a rotation angle of the nano cells arranged at each cell position; S30, arranging the nano cells with different rotation angles at corresponding cell positions, and constructing theartificial microstructure for realizing light beam coherence regulation. According to the invention, a focused light beam is incident to the surface of the constructed artificial microstructure, and the incident area of the artificial microstructure is selected as required, so the partially coherent light beam with the corresponding coherence degree can be obtained.

Description

technical field [0001] The invention relates to the technical field of coherent optics, in particular to a method for constructing an artificial microstructure and an optical system including the artificial microstructure. Background technique [0002] As an important branch of modern optics, coherent optics has attracted the attention of a large number of researchers at home and abroad. Coherence actually represents the result of the correlation between some quantities of two points in the fluctuating light field, and this correlation can be measured by the fringe contrast of Young's double-slit interference. Coherence is an important characteristic of the light field, and it is of great significance to the study of the coherence regulation of the light field. It has been found that the coherence regulation of the light field is widely used in free space optical communication, lidar, laser nuclear fusion, special optical imaging, quantum optics, etc. It has important appli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/06B82Y20/00
CPCB82Y20/00G02B26/06
Inventor 刘磊鑫刘文玮王飞赵承良陈树琪蔡阳健
Owner SUZHOU UNIV
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