Design method of beam mask with elliptical optical conveyor belt capable of transporting throughput particles
A design method and conveyor belt technology, applied in optics, optical components, instruments, etc., can solve the problems of particle capture difficulties, lack of elliptical optical conveyor belt beams, etc.
Inactive Publication Date: 2020-03-20
HENAN UNIV OF SCI & TECH
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Problems solved by technology
This makes it very difficult for traditional optical ferris wheels to capture particles
[0005] Therefore, in the field of micro-manipulation, there is still a lack of an elliptical optical conveyor belt beam that can transmit throughput particles to achieve stable capture and transport of particles on the elliptical structure.
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[0036] Taking a mask with a size of 512×512 as an example, an elliptical optical conveyor belt beam mask that can transport throughput particles is given for a laser with a working wavelength of 532nm. The angle adjustment factor l of the mask board is 5.5, and the value of the transmission factor θ is 0 every π / 2 to 2π; and 0 every -π / 2 to -2π. According to the transmittance function of the mask plate in the specific embodiment, an elliptical optical conveyor belt beam mask plate capable of transporting particles can be finally obtained. figure 1 The elliptical optical conveyor belt beam mask that can transport throughput particles is given. This elliptical optical carousel reticle capable of transporting throughput particles can be realized by a spatial light modulator in the far field of the spatial light modulator. Taking the pluto-vis-016 spatial light modulator of German Holoeye Company as an example, the proposed elliptical optical conveyor belt beam mask that can tran...
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A design method for a mask plate of an elliptical optical conveyor belt light beam capable of transmitting and taking in and sending out particles is disclosed. Two elliptical ring factors are combined; after interference of two elliptical ring factors is superposed, a phase step is introduced to form a gap for taking in and sending out particles, a mask plate complex amplitude transmittance function can be obtained, and the mask plate of the elliptical optical conveyor belt light beam capable of transmitting and taking in and sending out the particles can be obtained after an angle of the mask plate complex amplitude transmittance function is determined and blazed optical gratings are superposed. Via the mask plate designed in the present invention, the elliptical optical conveyor belt light beam capable of transmitting and taking in and sending out the particles can be generated at a far field of the mask plate. In addition, one end of the conveyor belt is provided with an opening, and each carrying unit can be sequentially moved to the opening via adjustment and control of transmission factors; in an open state, the particles can be taken in and send out via microflow assistingoperation and the like, and stable capture can be formed. Therefore, the design method has very important application prospects in the field of micromanipulation.
Description
technical field [0001] The invention relates to the field of microparticle light manipulation, in particular to a design method of an elliptical optical conveyor belt beam mask capable of transporting throughput microparticles. Background technique [0002] With the proposal of vortex beams, the generation, regulation, characterization and application of vortex beams have attracted the attention of many researchers. A variety of spatially structured light fields can be generated by adjusting the vortex beam. These new light fields exhibit a series of novel physical effects and phenomena, such as smart light manipulation and special microstructures, which have a wide range of applications. [0003] However, since each light field often has a fixed manipulation mode, it is of great significance to study the diversity of light field structures. In recent years, spatial light fields with various structures have been studied and proposed one after another. Regarding the square ...
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IPC IPC(8): G02B27/09G02B27/00
CPCG02B27/0012G02B27/0927
Inventor 李新忠马海祥台玉萍李贺贺唐苗苗
Owner HENAN UNIV OF SCI & TECH