Diamond film fluorescence efficient collecting device

A diamond thin film and collection device technology, applied in the field of fluorescence detection, to achieve the effect of improving sensitivity, optimizing concentration and spin properties

Pending Publication Date: 2021-08-10
ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem of how to efficiently collect the red fluorescence excited by the diamond film in the process of existing magnetic detection technology and optical path construction, so as to measure the magnetic field more accurately, the present invention provides a high-efficiency collection device for diamond film fluorescence

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with drawings and embodiments. However, those skilled in the art should know that the present invention is not limited to the specific embodiments listed, as long as it conforms to the spirit of the present invention, it should be included in the protection scope of the present invention.

[0020] See attached Figure 1-2 . The high-efficiency diamond thin film fluorescence collection device of the present invention includes a laser 1, an optical fiber coupling head 2, a dichromatic film 3, an optical fiber probe end 4, a diamond thin film 5, a magnet 6, a microwave 7, a filter 8, a CCD camera 9, a computer 10, and a microwave Antenna 11, lock-in amplifier 12, the laser 1 emits green laser light, the green laser light is coupled into the optical fiber through the optical fiber coupler 2, and then transmitted to the end 4 of the optical fiber probe through the dichromatic film 3.

[0021] The diamond ...

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Abstract

The invention discloses a diamond film fluorescence efficient collecting device. The device comprises a laser and a computer, the laser emits green laser, and the green laser is coupled into an optical fiber through an optical fiber coupler and then transmitted to the tail end of an optical fiber probe through a double-color piece; a diamond film is fixedly arranged at the bottom of the tail end of the optical fiber probe; the microwave antenna is uniformly wound at the tail end of the optical fiber probe; a microwave signal of the microwave device acts on the NV color center of the diamond film through the microwave antenna; and a magnet is arranged below the diamond film and applies a magnetic field to the NV color center of the diamond film. The device has the beneficial effects that the diamond is adhered to the tail end of the optical fiber as a main sensing part, and laser is limited in the optical fiber by utilizing total reflection of electromagnetic waves in the optical fiber, so that the transmission attenuation of the optical fiber is reduced, and red fluorescence excited by a diamond film NV color center is efficiently collected.

Description

technical field [0001] The invention relates to a high-efficiency collection device for diamond film fluorescence, which belongs to the technical field of fluorescence detection. Background technique [0002] With the development of society and the advancement of science and technology, the development and application of magnetic field measurement technology has attracted more and more attention. The discovery of some new physical effects and the breakthrough of new technology have greatly improved the performance of the magnetic field measurement device. The current main methods for magnetic field measurement on a micro scale include superconducting quantum interferometer, scanning Hall probe microscope, magnetic force microscope (MFM), magnetic resonance microscope (MRFM), etc., the theoretical space and magnetic field resolution are limited It surpasses the above-mentioned technologies, but its inherent operation under ambient conditions and low external magnetic field i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/64
CPCG01N21/643
Inventor 赵龙赵博文王鑫仇茹嘉杨海涛谢佳柯艳国李伟范明豪高博郑国强汪玉孙建王丽君陈凡李圆智陈嘉罗大程
Owner ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER
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