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A method and system for preparing a direction-controllable curved optical bottle

A preparation system and bending technology, applied in the optical field, can solve the problems of low freedom, limited adjustable parameters, and inability to control the direction of the light bottle, and achieve the effect of simple system and low cost

Active Publication Date: 2022-04-12
SOUTH CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the light bottle produced in the prior art has low freedom, limited adjustable parameters, and cannot control the direction of the light bottle

Method used

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  • A method and system for preparing a direction-controllable curved optical bottle
  • A method and system for preparing a direction-controllable curved optical bottle
  • A method and system for preparing a direction-controllable curved optical bottle

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0052] The flow chart of the method for the direction-controllable bendable optical bottle produced by the circular Pierce vortex beam propagating along the parabolic trajectory of the present invention is as follows figure 1 As shown, the preparation method of the direction-controllable curved optical bottle of the present invention comprises the following steps:

[0053] S1. Through computer simulation, the plane wave interferes with the circular Pierce vortex beam modulated by the phase of the parabolic trajectory. The amplitude and phase information of the beam is loaded on the interference fringe, and the phase hologram is obtained and transmitted to the spatial light modulator;

[0054] S2. The spatial light modulator is loaded with a phase hologram;

[0055] S3, turn on the laser to emit a Gaussian beam;

[0056] S4. The beam expander performs collimation and beam expansion processing on the Gaussian beam;

[0057] S5. The non-polarizing beam splitter cube mirror spli...

Embodiment 1

[0091] Example 1 and Figure 4 Coincidentally, under the conditions of different η values, the circular Pierce vortex beam can be transmitted along the parabolic trajectory to form optical bottles with different bending degrees. The larger the η value, the more curved the trajectory, the more obvious the curvature of the light bottle, and the longitudinal length of the light bottle body will shrink.

[0092] S1. Numerical simulation of plane waves with parameters b=0.1, r 0 =1.5, α=0, β=1, l=3, (x 1 ,y 1 )=(0,0) The phase hologram after the interference of the circular Pierce vortex beam with the parabolic trajectory phase, the value of η is set to 1000, 3000, 6000 respectively;

[0093] S2. Load the acquired phase hologram onto the spatial light modulator;

[0094] S3. Use figure 2 The optical path diagram of the experiment can make a bendable optical bottle, and the optical bottles corresponding to different η values ​​are as follows: Figure 4 shown.

[0095] All pa...

Embodiment 2

[0097] Example 2 and Figure 5In agreement, under this condition, a circular Pierce vortex beam propagating along a parabolic trajectory in free space can produce a direction-controllable optical bottle. Combining the transverse section and longitudinal section, it can be seen that the circular Pierce vortex beam forms a three-dimensional closed space during the propagation process, and the bottle-shaped dark area with low light intensity in the middle is surrounded by high light intensity, and because the trajectory presents a parabolic shape, it forms A curved optical vial.

[0098] S1. Numerical simulation of plane waves with parameters b=0.1, r 0 =1.5, α=0, β=1, l=5, (x 1 ,y 1 )=(0,0), the phase hologram after the interference of the circular Pierce vortex beam with the parabolic trajectory phase of η=1000;

[0099] S2. Load the acquired phase hologram onto the spatial light modulator;

[0100] S3. Use figure 2 The experimental light path diagram can make the vortex...

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Abstract

The invention discloses a method and system for preparing a direction-controllable curved optical bottle. The preparation method includes the interference between a plane wave and a circular Pierce vortex beam modulated by a parabolic trajectory through computer simulation, and the amplitude and phase information of the beam is loaded. On the interference fringe, obtain the phase hologram and transmit it to the spatial light modulator; turn on the He-Ne laser to emit Gaussian beam through the beam expander and non-polarizing beam splitter cube mirror; after the light irradiates the spatial light modulator, it propagates through the 4f system After that, the circular Pierce vortex beam modulated by the parabolic trajectory phase can be obtained; the circular Pierce vortex beam with the parabolic trajectory phase effect can be transmitted in the undisturbed air, and the circular Pierce vortex beam can be obtained along the pre-set parabola The trajectory is transmitted, and a three-dimensional curved light bottle is spontaneously formed during the transmission. The invention can realize the controllable direction of the curved light bottle, and has a higher degree of freedom in trapping and manipulating particles.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to a method and system for preparing a direction-controllable curved optical bottle. Background technique [0002] The surge self-focusing property enables the energy of the beam to be focused by an order of magnitude before reaching the target, and the beam with this property has great potential applications in biomedicine and optical micromanipulation. Circular Pierce beam is a new type of beam with circular symmetric profile, which has attracted much attention due to its good properties such as surge self-focusing and self-healing. [0003] In 1986, A. Ashkin and others discovered that a tightly focused beam can exert optical force on particles, proposed the concept of "optical tweezers" and successfully realized the three-dimensional trapping of particles in experiments. It has great applications in the fields of material physics and so on. But more limited, optical tweezers ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/00G02B27/09G21K1/00
CPCG02B27/0012G02B27/0927G21K1/006
Inventor 邓冬梅许丹琳吴攸江骏杰莫振武
Owner SOUTH CHINA NORMAL UNIVERSITY
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