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Optical tweezer generation device capable of providing momentum and method for allowing for momentum of optical tweezer

A technology for generating devices and optical tweezers, applied in optics, optical components, nonlinear optics, etc.

Inactive Publication Date: 2011-04-13
RAYDIUM SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Optical tweezer generation device capable of providing momentum and method for allowing for momentum of optical tweezer
  • Optical tweezer generation device capable of providing momentum and method for allowing for momentum of optical tweezer
  • Optical tweezer generation device capable of providing momentum and method for allowing for momentum of optical tweezer

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no. 1 example

[0041] Please refer to figure 1 , Figure 2 and image 3 , figure 1 A block diagram showing an optical tweezers generating device with momentum according to the first embodiment of the present invention, what FIG. 2 shows is figure 1 The structural diagram of the diffractive optical element 130, image 3 Illustrated is figure 1 A schematic diagram of the optical tweezers OT1 sensed by the middle image sensor 162 on the test piece 110 . For example, there are a number of tiny particles (not shown) in the test piece 110, and the optical tweezers clip generating device 10 with momentum can be provided to provide the optical tweezers clip OT1 with momentum M1 on the test piece 110 to match the test piece. The tiny particles in the component 110 are controlled.

[0042] The optical tweezers generation device 10 with momentum includes a laser light source 120 , a diffractive optical element (Diffractive Optical Element, DOE) 130 , a microscope objective lens 140 , a mirror 150 a...

no. 2 example

[0055] Please refer to Figure 6 and Figure 7, Figure 6 What is shown is a schematic diagram of the optical tweezers OT2 - OT5 in the testing sample 110 according to the second embodiment of the present invention, and FIG. 7 is a schematic diagram of the diffractive optical element 230 according to the second embodiment of the present invention. The difference between the device 10 for generating optical tweezers with momentum in this embodiment and the first embodiment is that the diffractive optical element 230 is used to replace the diffractive optical element 130 in this embodiment. The diffractive optical element 230 has a phase delay pattern P'. When the laser light LS passes through the phase delay pattern P', four linear optical tweezers OT2-OT5 can be generated on the test piece 110, which respectively have momentums M2-M5. The tiny particles in the test piece 110 are respectively controlled to move circularly along the directions of the momentums M2-M5. The phase ...

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Abstract

The invention discloses a device for providing an optical nipper with momentum, which is used to provide an optical nipper with first momentum in a detection test member. The invented device comprises a laser source, a diffractive optical element (DOE) and a lens. The laser source is used to output laser. The DOE has a phase delay graph. The laser generates a diffractive graph after passing the phase delay graph. The lens receives the diffractive graph and focuses it on the detection test member to form an optical nipper with first momentum. Wherein the lens has an optical axis which intersects with the DOE at the optical axis intersection point. The geometric centre of the phase delay graph has a displacement vector with respect to the optical axis, and the direction of the first momentum relates to the direction of the displacement vector.

Description

technical field [0001] The invention relates to an optical tweezers generating device, in particular to an optical tweezers generating device capable of providing an optical tweezers with momentum. Background technique [0002] "Optical tweezers" technology already exists, which uses the gradient force of a laser to trap tiny particles or cells. The traditional optical tweezers technology passes laser light through a diffractive optical element (Diffractive Optical Element, DOE) with a phase delay pattern, and the passing beams of each part on the phase delay pattern diffract each other to generate a diffraction pattern and determine the intensity distribution of the laser. The part with high light intensity in the diffraction pattern has the effect of trapping tiny particles. [0003] However, the traditional optical tweezers technology cannot provide lateral (vertical to the optical axis) momentum to move the captured tiny particles. Therefore, when the traditional optica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/00G02B27/42G02F1/00
Inventor 徐琅刘承贤曾胜阳周忠诚王威吴丰旭彭震李大元
Owner RAYDIUM SEMICON