Low-temperature diamond nitrogen vacancy color center optical microscope

An optical microscope and diamond technology, applied in the field of optical microscope, to achieve wide application prospects, improve experimental efficiency, and ultra-high detection sensitivity

Active Publication Date: 2022-07-29
YISHENG SCI INSTR (JIAXING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve or at least alleviate the problems existing in the prior art

Method used

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  • Low-temperature diamond nitrogen vacancy color center optical microscope
  • Low-temperature diamond nitrogen vacancy color center optical microscope
  • Low-temperature diamond nitrogen vacancy color center optical microscope

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The invention provides a low-temperature diamond nitrogen vacancy color center optical microscope. Figure 1-2 , including an optical table 90 as an installation base and a main chamber 30 arranged on the optical table 90, the main chamber 30 is provided with a cryostat 10 for maintaining the low temperature inside the main chamber 30, for maintaining the main chamber The ion pump 20 in the ultra-high vacuum environment inside the chamber 30;

[0036] The main chamber 30 is provided with a diamond nitrogen vacancy color center magnetic force microscope scan head 40 for high-resolution magnetic imaging, and the optical platform 90 is provided with a laser beam incident on the diamond nitrogen vacancy color center magnetic force microscope scan head 40 and An optical path member 60 that focuses on the sample and receives the return fluorescence in the same way.

[0037] The diamond nitrogen vacancy color center magnetic force microscope scanning head 40 includes an outer...

Embodiment 2

[0047] The difference between this embodiment and Embodiment 1 is that, such as Image 6 As shown, one side of the main chamber 30 is connected to the sample injection chamber 70 through the transfer chamber 301. The sample injection chamber 70 is installed with a molecular pump 80 for maintaining the vacuum state in the sample chamber 70. The transfer chamber 301 and the injection chamber The sample chamber 70 is provided with a sample transfer rod 50 for in-situ transfer of samples without breaking the vacuum and low temperature environment of the main chamber 30, in conjunction with the diamond needle tip 426 detachably mounted on the needle tip holder 425 through the needle tip holder pressing piece 423, The pluggable sample holder pressing piece 436 is installed on the sample holder 435 coupled to the output end of the piezoelectric stepper motor 433 in the XY direction, and then the sample and the diamond tip in the sample holder 435 can be replaced in-situ through the ma...

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Abstract

The invention discloses a low-temperature diamond nitrogen vacancy color center optical microscope, and aims to solve the problems that at present, research on a diamond nitrogen vacancy color center magnetic microscope is little, a room-temperature experiment can only be carried out in an atmospheric environment, and research on a magnetic material in a low-temperature environment cannot be carried out. Comprising an optical platform serving as a mounting base body and a main chamber arranged on the optical platform, and the main chamber is provided with a cryostat used for maintaining low temperature in the main chamber and an ion pump used for maintaining an ultrahigh vacuum environment in the main chamber. A diamond nitrogen vacancy color center magnetic force microscope scanning head for high-resolution magnetic imaging is arranged in the main chamber; the optical platform is provided with a light path piece which is used for enabling laser to enter a scanning head of the diamond nitrogen vacancy color center magnetic microscope, focusing the laser on a sample and receiving fluorescence returned by an original path. The method is particularly suitable for research of nanoscale magnetic materials in a low-temperature environment, and has high social use value and application prospects.

Description

technical field [0001] The invention relates to the technical field of optical microscopes, in particular to a low-temperature diamond nitrogen vacancy color center optical microscope. Background technique [0002] Microscopic imaging and observation of magnetic materials help to study the microstructure and formation mechanism of magnetic materials. With the development of scientific research technology, the scale of magnetic material research has tended to be sub-micron or even nano-scale. Therefore, ultra-high-resolution and ultra-high-sensitivity testing of magnetic materials is helpful for the study of these nanoscale magnetic materials. [0003] At present, the traditional microscopic observation equipment for magnetic materials research mainly includes Kerr microscope (resolution about 300nm), magnetic force microscope MFM (resolution about 50nm), etc. Measurement technology and scanning imaging technology can achieve high-resolution magnetic imaging at about 30 nm, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/64G01Q60/20G01Q60/24G02B21/00
CPCG01N21/6458G01Q60/20G01Q60/24G02B21/002
Inventor 李净张宇田悦马诚杰沈敏敏王城程
Owner YISHENG SCI INSTR (JIAXING) CO LTD
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