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A near-field super-resolution optical imaging method based on periodic nanohole array and lens medium microsphere array

A technology of nanopore array and microsphere array, which is applied in optics, optical components, scanning probe microscopy, etc. , the effect of large imaging range and fast imaging speed

Active Publication Date: 2020-10-30
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] Aiming at the problems of low resolution and limited imaging speed of the current near-field scanning optical microscope, the present invention proposes a super-resolution optical microscopy imaging method based on a periodic nanohole array and a lens medium microsphere array

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  • A near-field super-resolution optical imaging method based on periodic nanohole array and lens medium microsphere array
  • A near-field super-resolution optical imaging method based on periodic nanohole array and lens medium microsphere array
  • A near-field super-resolution optical imaging method based on periodic nanohole array and lens medium microsphere array

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Embodiment Construction

[0031] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail with reference to the accompanying drawings.

[0032] The invention provides a near-field super-resolution optical imaging method based on a periodic nanohole array and a lens medium microsphere array, including the following steps:

[0033] Step S1. Add a three-dimensional piezoelectric stage 2 above the near-field optical microscope. The three-dimensional piezoelectric stage 2 installs the optical fiber 1, the collimator 3, the periodic nanohole array 4, and the lens medium microspheres from top to bottom. The focusing module composed of the array 5, the hole spacing of the periodic nanohole array is the same as the microsphere spacing in the lens medium microsphere array, keeping the holes corresponding to the central axis of the microspheres; the device structure is as follows figure 1 As shown, it inc...

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Abstract

The invention discloses a near field super-resolution optical imaging method based on a periodic nanopore array and a lens medium microsphere array. The incident light can be split into small beams with diameters of 10 to 500 nm by the periodic nanopore array, and the lens medium microsphere array can focus these beams separately to form a light spot array. A hole array corresponds to the centralaxis of the lens medium microsphere array through a three-dimensional mobile periodic nanopore array device, and the beams scattered by the hole array are focused to the maximum extent to obtain a nano-scale light spot array, thereby achieving the purpose of super-resolution micro-imaging. The near field super-resolution optical imaging method disclosed by the invention has the beneficial effectsof combining the advantages of the periodic nanopore array and the lens medium microsphere array to extend the point scanning manner of the conventional near field scanning optical microscope to arrayscanning, overcoming the defects of small single imaging range, the need for extremely fine probes, contact with samples in a scanning process and incapability of imaging samples with large height changes, and achieving ultra-high resolution micro-imaging.

Description

Technical field [0001] The invention relates to the technical field of near-field super-resolution optical imaging, in particular to a near-field super-resolution optical imaging method based on a periodic nanohole array and a lens medium microsphere array. Background technique [0002] In 1928, British scientist Synge proposed for the first time a vision that could break through the resolution of optical microscopes. Synge imagined placing a sub-wavelength size detector in the near-field range of the sample, scanning point by point and collecting the data of each point. Optical signals can achieve super-resolution imaging. This is Scanning Near-field Optical Microscopy (SNOM) (Synge E HA suggested method for extending microscopic resolution into the ultra-microscope region. Philosophical Magazine, 1928, 6(35) ):356-362). Synge specifically described this method in the article. An opaque plate with a small diameter hole is placed at a distance of less than 100nm from the sample ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01Q60/18G02B5/00G02B27/58
CPCG01Q60/18G02B5/008G02B27/58
Inventor 王宏达石岩邵丽娜田昕
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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