Method for preparing optical fiber quantum probe with controllable diamond particle doping concentration

A technology of diamond particles and doping concentration, applied in the size/direction of the magnetic field, the use of magneto-optical equipment for magnetic field measurement, thermometers, etc. question

Active Publication Date: 2020-12-29
厦门烽行光电科技有限公司
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the technical problem to be solved in the present invention is that the existing optical fiber and the nano-diamond particle coupling method containing NV color center cannot accurately control the diamond particle concentration, the repeatability is low, and it cannot be produced on a large scale. To solve this problem, a method of preparing optical fiber quantum probes with controllable diamond particle doping concentration is proposed, using the sol-gel method to dope nano-diamonds, and making optical fiber probes on the end face of optical fibers by dipping by pulling method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing optical fiber quantum probe with controllable diamond particle doping concentration
  • Method for preparing optical fiber quantum probe with controllable diamond particle doping concentration
  • Method for preparing optical fiber quantum probe with controllable diamond particle doping concentration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] exist figure 2 Among them, the optical fiber probe coated with gel doped with nano-diamond particles containing NV color centers in this embodiment consists of a sol-gel film 1 , nano-diamond particles 2 containing NV color centers, and an optical fiber 3 . The shape of the sol-gel film 1 in this embodiment is hemispherical with a certain curvature, which is caused by the surface tension generated during the preparation process of the pulling method. The size of the nano-diamond particles 3 containing NV color centers doped in the sol-gel is not limited, and the usable particle size ranges from tens of nanometers to hundreds of nanometers.

Embodiment 2

[0028] figure 2 Among them, the thickness of the sol-gel 1 on the end face of the optical fiber 3 can be controlled by the pulling speed of the stepping motor, which can realize the preparation of optical fiber quantum probes with different thicknesses of nano-diamond particle films containing NV color centers.

Embodiment 3

[0030] figure 2 Among them, sol-gel 1 can be replaced with different types of sol-gel materials according to actual needs, and is not limited to a single sol-gel material; optical fiber 3 can use single-mode optical fibers, multi-mode optical fibers and photonic crystals Ordinary optical fibers such as optical fibers or special optical fibers are not limited to a single type of optical fiber.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a method for preparing an optical fiber quantum probe with controllable diamond particle doping concentration. The method comprises the following steps of: step 1, mixing a solution with a nano diamond particle aqueous solution containing NV color center; step 2, ultrasonically dissolving the prepared solution doped with the nano diamond particles containing NV color centerby a sol-gel method, sealing and standing, and fully hydrolyzing to form sol-gel; and step 3, uniformly coating the sol-gel prepared in the step 2) on the end surface of the optical fiber, holding theoptical fiber by a stepping motor, contacting the end surface of the optical fiber with the sol-gel for a period of time, pulling at a certain rate to form a hemispherical gel film with a certain thickness and a certain curvature on the end surface, and curing to obtain the prepared optical fiber quantum probe. The method can control the doping concentration of the nano diamond particles containing NV color center, and the mixing is uniform. In addition, the probe has the advantages of convenient manufacturing process and high repeatability, and can realize mass production.

Description

technical field [0001] The invention belongs to the technical field of making optical fiber two-word probes, and relates to a method for preparing optical fiber quantum probes with controllable diamond particle doping concentration, in particular to a method based on sol-gel doping with nitrogen-vacancy color center diamond nanometer Fiber-optic quantum probes for particles. Background technique [0002] At room temperature, the nitrogen-vacancy color center is a carbon atom in diamond replaced by a nitrogen atom, and there is a vacancy nearby, such as figure 1 Shown by the cube on the left. It has unique advantages such as stable optical properties and electron spin properties. This solid-state single-spin system has stable fluorescence emission, ultra-long electron spin coherence time, easy initialization and readout, and can be manipulated. Many advantages such as coherence time show great application prospects in quantum precision measurement. Based on nitrogen-vacanc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01K11/32G01R33/00G01R33/032
CPCG01K11/3213G01R33/0052G01R33/032
Inventor 王若晖边策褚智勤忽满利曹蔚
Owner 厦门烽行光电科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap