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Super-surface microscope and preparation method thereof, and optical path measurement system

A metasurface and microscope technology, applied in the field of biological research, can solve the problems that the microscope cannot observe fine objects, a single lens, etc., and achieve the effects of integration, simple optical path measurement system, and overcoming large volume

Active Publication Date: 2019-07-12
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Although the metalens has many advantages, it is only a single lens and cannot achieve the effect of traditional microscopes for observing subtle objects.

Method used

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  • Super-surface microscope and preparation method thereof, and optical path measurement system
  • Super-surface microscope and preparation method thereof, and optical path measurement system
  • Super-surface microscope and preparation method thereof, and optical path measurement system

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Experimental program
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Effect test

Embodiment 1

[0049] Data simulation:

[0050] In the visible light range, the dielectric material has a high refractive index, low loss, and strong coupling with light. Therefore, a metasurface composed of all media has a very high efficiency. The present invention uses titanium dioxide as the material of the basic structure, which has a refractive index of 2.28 at a wavelength of 520 nm and a loss of zero.

[0051] S1, use Comsol simulation software to simulate 8 basic structural units: use ITO as the substrate, etch the super lens structure of the titanium dioxide cylinder on the surface of the substrate, and satisfy that the transmittance of each basic structural unit is above 90%, and the thickness is H It is 50nm, the period is 265nm, the phase gradient is π / 4, which meets the requirement of phase coverage 2π, and can achieve complete control of the wavefront. Table 1 shows the diameter, transmittance and representative phase of each basic structural unit, where D is the diameter, T is th...

Embodiment 2

[0068] In order to observe the magnification effect of the supersurface microscope, the present invention also designs and builds a set of optical path imaging system to be used as an optical path measurement system.

[0069] Such as Picture 8 As shown, the optical path measurement system includes a red laser 1, a first mirror 2, a second mirror 3, a white light source 4, a beam splitter 5, a 532 band pass filter 6, a 100 times objective lens 7, a 50 times objective lens 8. CCD camera 9.

[0070] (1) When the light path is collimated and debugged, the laser light emitted by the red laser 1 passes through the first mirror 2, the second mirror 3, the beam splitter 5, the 532 band pass filter 6, the 100 times objective lens 7, and the 50 times objective lens. After 8 enter the CCD camera 9, fix the route of the first mirror 2, the second mirror 3, the beam splitter 5, the 532 color filter 6, the 100 times objective lens 7, the 50 times objective lens 8, and the CCD camera 9.

[0071] ...

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Abstract

The invention provides a super-surface microscope, a preparation method thereof and a light path measurement system, the preparation method adopts a titanium dioxide super-surface to prepare the super-surface microscope consisting of two super-lenses with different focal lengths and diameters of up to 100 micrometers, and the invention also provides the light path measurement system. Compared withthe prior art, the super lens has no spherical aberration; the structure is simple, the lens is composed of two simple planar super lenses, and no extra lens group needs to be added; the size is verysmall, the diameter can reach 100 micrometers, and integration is facilitated; according to the preparation method, conventional reagents and instruments are adopted, the steps are easy to implement,and operability is high; the optical path measuring system is simple and quick, and can quickly measure the finished product of the super-surface microscope.

Description

Technical field [0001] The invention belongs to the technical field of biological research, in particular to a super-surface microscope that can be applied to the research and observation of biological microscopy, a preparation method thereof, and an optical path measurement system. Background technique [0002] A traditional optical microscope uses two lens groups to obtain an inverted virtual image with a proper magnification through the primary magnification of the objective lens group and the secondary magnification of the eyepiece group. The working principle of the traditional lens is to achieve the purpose of light convergence through the accumulation of phases, and the phase is cumulative and gradual; due to the working principle of the traditional lens, the volume cannot be made small; at the same time, due to the process of the traditional lens, the shape of the lens It is impossible to make a 100% spherical surface, there is spherical aberration, and a lens group has t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B21/00C23C14/08C23C14/18C23C14/34G01N21/84
CPCG02B21/0004C23C14/3478C23C14/083C23C14/185G01N21/84
Inventor 肖淑敏余烈国宋清海
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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