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A controllable all-optical transport belt system for micro-nano particles and its control method

A technology of micro-nano particles and transport belts, which is applied in the field of all-optical manipulation of micro-nano particle transport, can solve the problem that the starting point, transport speed, transport distance and transport direction of micro-nano particle transport cannot be realized at the same time. Realize the control of the starting point of transportation, the complex manufacturing process of the transportation device, etc., to achieve the effect of improving the application flexibility, simple structure, and broadening the application prospect

Active Publication Date: 2022-04-01
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can control the transport speed of micro-nano particles and achieve directional transport, it requires the preparation of complex interdigitated electrodes, and its directional transport depends on different interdigital electrode structures and cannot be realized on the same structure. Directional transport at any angle, and then it is impossible to control the starting point of transport
Neither of the above two methods can simultaneously realize the controllable starting point, transport speed, transport distance and transport direction of micro-nano particles, and the manufacturing process of the transport device is complicated, which has great limitations

Method used

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  • A controllable all-optical transport belt system for micro-nano particles and its control method
  • A controllable all-optical transport belt system for micro-nano particles and its control method
  • A controllable all-optical transport belt system for micro-nano particles and its control method

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Embodiment 1

[0038] An adjustable all-optical transport belt system for micro-nano particles provided in this embodiment includes a laser 1, an optical system and 10 samples, the micro-nano particles are located on the 10 samples, and the laser generated by the laser 1 passes through The optical system is irradiated on the sample 10 stage to transport micro-nano particles; the optical system includes a circular cylindrical lens 4, a diffusion collimator lens group, a focusing lens, and an incident reflector 8; the circular cylindrical lens 4 is used to The laser beam is shaped into an elliptical Gaussian beam, the diffuse collimation lens group is used to expand and collimate the elliptical Gaussian beam, the focusing lens focuses the beam to the micron level, and the incident mirror 8 is used to change the beam direction, making it incident on the sample stage at an oblique angle to form a plenoptic transport band.

[0039] Further, the focusing lens is the third convex lens 7, and the be...

Embodiment 2

[0061] An adjustable all-optical transport belt system for micro-nano particles provided in this embodiment includes a laser, an optical system and a sample stage, the micro-nano particles are located on the sample stage, and the laser light generated by the laser is irradiated by the optical system on The sample stage is used to transport micro-nano particles; the optical system includes a circular cylindrical lens, a diffuse collimator lens group, a focusing lens, and an incident mirror; the circular cylindrical lens is used to shape the laser beam into an elliptical Gaussian beam , the diffuse collimator lens group is used to expand and collimate the elliptical Gaussian beam, the focusing lens focuses the beam to the micron level, and the incident mirror is used to change the direction of the beam so that it enters the An all-optical transport band is formed on the sample stage.

[0062] Further, the diffuse collimating lens group includes a first convex lens and a second c...

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Abstract

The invention provides an adjustable all-optical transport belt system for micro-nano particles and a control method thereof. The adjustable all-optical transport belt system includes a laser, an optical system and a sample stage, and the micro-nano particles are located on the sample stage. Above, the laser light generated by the laser is irradiated on the sample stage through an optical system to transport micro-nano particles; the optical system includes a circular cylindrical lens, a diffuse collimator lens group, a focusing lens, and an incident mirror. Compared with the prior art, the beneficial effect is that the present invention provides an all-optical transport belt system for micro-nano particles, which directly controls the position of the optical trap without depending on the substrate structure, and can simultaneously realize the transport of micro-nano particles. The starting point of transportation, transportation speed, transportation distance and transportation direction can all be adjusted, which greatly improves the application flexibility of the optical transportation system and broadens its application prospect.

Description

technical field [0001] The present invention relates to the technical field of all-optical control of transport of micro-nano particles, and more specifically, relates to an adjustable all-optical transport belt system for micro-nano particles and a control method thereof. Background technique [0002] Optical force exists in the momentum exchange process when light interacts with matter. Because of its advantages of non-contact, non-damage, and high operating precision, it is widely used in frontier fields such as physics, chemistry, biology, and medicine. All-optical transport is a technology that uses optical power to transport micro-nano particles, which can precisely control the separation, classification and fixed-point transport of particles. The optical force used by the all-optical transport belt is at the pN level, which is the same order of magnitude as the force used to manipulate cells with optical tweezers and to study DNA characteristics with optical force. I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/09G02B26/08G21K1/00
CPCG02B27/0955G02B27/0927G02B26/0875G21K1/006
Inventor 余健辉朱文国陈哲黄耀明张宇唐洁媛郑华丹
Owner JINAN UNIVERSITY