A device and method for independent phase control of radial and angular cylindrical vector beams
A control device and column vector technology, applied in the field of optics, can solve problems such as polarization insensitivity, and achieve the effects of small size, breaking polarization insensitivity, and ease of use
Active Publication Date: 2022-07-08
SHENZHEN UNIV
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Problems solved by technology
However, the polarization insensitivity makes the phase modulation of radial and angular cylindrical vector beams always the same
Therefore, it is still quite challenging for metasurfaces to achieve independent phase control of radial and angular cylindrical vector beams.
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[0041] In order to make the objectives, technical solutions and advantages of the present invention clearer and clearer, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0042] see figure 1 , figure 1 It is a schematic structural diagram of a preferred embodiment of the independent phase control device for radial and angular cylindrical vector beams of the present invention.
[0043] like figure 1As shown, an embodiment of the present invention provides an independent phase control device for radial and angular cylindrical vector beams. The independent phase control device for radial and angular cylindrical vector beams includes: radial and angular mixed cylindrical vectors The beam generation module, the radial and angular cylindrical vector b...
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The invention discloses an independent phase control device and method for radial and angular cylindrical vector beams. The device includes: a generating module for radial and angular mixed cylindrical vector beams, and a spatial separation of radial and angular cylindrical vector beams. A device module and a far-field detection module; the present invention realizes independent phase manipulation of radial and angular cylindrical vector beams by further giving each superatom a spatial position-related rotation angle on the basis of the traditional dynamic phase metasurface. The radial and angular cylindrical vector beam spatial separation devices are designed by integrating conjugated gradient grating phases in the radial and angular polarization directions. Arbitrary phase manipulation is possible, which makes it have broad application prospects in the fields of structured optical communication and all-optical interconnection.
Description
technical field [0001] The present invention relates to the field of optical technology, in particular to an independent phase control device and method for radial and angular cylindrical vector beams. Background technique [0002] Generally speaking, the polarization of light refers to the non-axial symmetry of the vibration direction of the light vector relative to the propagation direction, and light with polarization properties is called polarized light. According to the spatial distribution of the polarization state in the beam cross section, polarized light can be divided into uniformly polarized light and non-uniformly polarized light, and vector light is a kind of non-uniformly polarized light. The most special of vector beams is a beam whose polarization state is cylindrically symmetrical in the beam cross-section, namely cylindrical vector beams, sometimes called vector beams or vector modes. The most common polarization directions are radial polarization and angul...
Claims
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IPC IPC(8): G02B5/00G02B27/09G02B27/28
CPCG02B5/008G02B27/283G02B27/286G02B27/0927
Inventor 贺炎亮李灿铭杨博谢智强刘俊敏田冰冰李瑛范滇元陈书青
Owner SHENZHEN UNIV