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Flexible optical micro-hand system and particle control method

An optical and micro-hand technology, applied in the field of optical tweezers micro-manipulation, can solve the problems of difficult control, small rotational operation torque, and not very comprehensive rotational dimensions, and achieve the effect of high transmission accuracy and long range.

Pending Publication Date: 2021-11-26
GUILIN UNIV OF ELECTRONIC TECH
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Problems solved by technology

However, the manipulation of the light beam is focused on one point, the torque of the rotation operation is small, and the rotation dimension is not very comprehensive, so the control is relatively difficult

Method used

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  • Flexible optical micro-hand system and particle control method
  • Flexible optical micro-hand system and particle control method
  • Flexible optical micro-hand system and particle control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0050] Example: Optical microhands are used for cell capture and posture adjustment.

[0051] Such as Figure 19 As shown, a fiber grating demodulation module 18 is added to the optical microhand system for monitoring the ambient temperature of the fiber end. The whole system and connection relationship are:

[0052] The ten-channel power source 1 selects an LD pump laser with a wavelength of 980nm, and the output power is adjustable from 0 to 100mW per channel. This wavelength has a small absorption coefficient in the water environment, which can effectively prevent the cells 17 from being damaged by local heating of the laser. The channels 1-1 to 1-8 of the ten-channel dynamic light source 1 are connected with the fan-in and fan-out device 5 of the nine-core optical fiber, corresponding to the eight peripheral cores of the nine-core optical fiber 2 . The light waves output by the ninth channel 1-9 of the ten-channel dynamic light source 1 are divided into two paths of equ...

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Abstract

The invention provides a flexible optical micro-hand system and a particle control method. The flexible optical micro-hand system is characterized in that the optical micro-hand system comprises a ten-channel power light source, an optical fiber coupler, a first optical fiber attenuator, a second optical fiber attenuator, an optical fiber phase modulator, a three-core optical fiber fan-in and fan-out device, a three-core optical fiber, a nine-core optical fiber fan-in and fan-out device, a nine-core optical fiber, a microscope and a computer. The nine-core optical fiber is provided with a 3*3 square distributed fiber core, the fiber end of the nine-core optical fiber is provided with a cone circular truncated cone structure, control light beams in eight peripheral fiber cores can be reflected and focused, and the middle core of the nine-core optical fiber is a few-mode fiber core. By controlling the intensity and phase of the control light transmitted in the fiber cores, the attitude adjustment functions of capturing, rotating and the like of the particles can be realized, and the directional transportation function of the particles can also be realized. The system and the method can be widely applied to the field of complex particle light manipulation.

Description

technical field [0001] The invention relates to a flexible optical microhand system and a particle manipulation method, and belongs to the technical field of optical tweezers micromanipulation. Background technique [0002] Optical tweezers technology refers to the technology of trapping and manipulating particles by using a single beam or multi-beam combined light field to form a trapping potential well for particles. Since Askin proposed a three-dimensional optical potential well based on a single-beam laser in the article "Observation of asingle-beam gradient force optical trap for dielectric particles" in 1986, which is used to realize the three-dimensional space control of particles, the "optical tweezers" Technology has gradually become familiar to people and has been greatly developed. The invention of optical tweezers has enabled people to obtain tools for manipulating tiny particles, which has promoted the rapid development of many interdisciplinary subjects, espec...

Claims

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Application Information

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IPC IPC(8): G21K1/00G02B6/42
CPCG21K1/006G02B6/4201
Inventor 苑立波杨世泰
Owner GUILIN UNIV OF ELECTRONIC TECH
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