Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Raman spectroscopy detection device

A technology of Raman spectrum detection and Raman scattering, applied in the field of spectrum detection, can solve problems such as infeasibility, unusability, weak signal, etc., and achieve the effect of improving receiving efficiency, increasing receiving efficiency, and increasing sensitivity

Active Publication Date: 2019-09-27
CHINA JILIANG UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the signal of Raman scattering itself is very weak, and the direction of Raman scattering light includes all directions in space, in general, when the scattered light is received by the detector, only a small part of the scattered light can be received , the reception efficiency of scattered light is very low
[0003] Increasing the intensity of the laser can increase the intensity of the Raman signal proportionally, however, this method is usually not feasible, because too high laser intensity will severely damage the sample, making the Raman spectrum unstable or even completely unusable

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
  • A Raman spectroscopy detection device
  • A Raman spectroscopy detection device
  • A Raman spectroscopy detection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0042] As a first embodiment of the radially polarized light generator 104, the radially polarized light generator 104 of the present invention is composed of two groups of cone prisms with the same cone angle. The two groups of tapered prisms are concave tapered prism 301 and convex tapered prism 302 respectively. The material of the tapered prism is ordinary optical glass or quartz optical glass. The tapered surface of the tapered prism is coated with a multi-layer film system. The multi-layer film system is composed of multi-layer high-refractive-index films with high refractive index and multi-layer low-refractive-index films with low refractive index. The material of the high refractive index film is one of tantalum pentoxide, titanium dioxide or zirconia. The material of the low refractive index film is one of silicon dioxide, silicon monoxide, aluminum oxide or magnesium fluoride.

[0043] When the power-adjusted excitation beam is incident on the conic line of a sec...

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

PropertyMeasurementUnit
wavelengthaaaaaaaaaa
refractive indexaaaaaaaaaa
refractive indexaaaaaaaaaa
Login to View More

Abstract

The invention discloses a Raman spectroscopic detection, comprising an excited laser, a narrow-band interference filter, a power-attenuating optical filter, a radial polarized light generator, reflectors, a Rayleigh optical filter, a microscopic lens, a Raman enhanced substrate, a co-focusing pin hole and a receiving spectrometer. According to the invention, a cylindrical light beam generated by the excited laser is converted into directional radial polarized laser light by using the radial polarized light generator; the directional radial polarized laser light is scattered by the Raman enhanced substrate so as to generate directionally-distributed directional Raman scattered light; most of the directional Raman scattered light can be received by the microscopic lens so as to allow the receiving intensity of the scattered light to be increased by 10<2> to 10<4> times compared with the receiving intensity of diffuse scattered light; so the receiving efficiency of Raman scattered light is improved, and the sensitivity of Roman detection is enhanced.

Description

technical field [0001] The invention relates to the technical field of spectrum detection, in particular to a Raman spectrum detection device. Background technique [0002] Raman detection is a fast-growing spectral detection method, which is widely used in chemistry, materials, archaeology, counterfeiting, criminal investigation and other fields. The mechanism of Raman scattering, simply put, is that a beam of laser light is irradiated on the sample to be tested, and then the sample to be tested scatters Raman scattered light, and the Raman scattered light is received by the detector and processed for signal. Since the signal of Raman scattering itself is very weak, and the direction of Raman scattering light includes all directions in space, in general, when the scattered light is received by the detector, only a small part of the scattered light can be received , the reception efficiency of scattered light is very low. [0003] Increasing the intensity of the laser can ...

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 Patents(China)
IPC IPC(8): G01N21/65
Inventor 金尚忠井绪峰金怀洲姜丽徐睿陈义孟彦龙
Owner CHINA JILIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com