Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Surface plasma resonance optical waveguide sensor based on dual reflectors

A surface plasmon and double-reflector technology, applied in instruments, scientific instruments, and material analysis through optical means, can solve problems such as high cost and bulky devices, achieve high sensitivity, increase sensitivity, and increase divergence angle Effect

Active Publication Date: 2015-07-15
ZHEJIANG UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional volume prism surface plasmon resonance sensors such as figure 1 As shown, its technical disadvantages are that the device is bulky and costly, and it can only detect one substance at the same time.

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
  • Surface plasma resonance optical waveguide sensor based on dual reflectors
  • Surface plasma resonance optical waveguide sensor based on dual reflectors
  • Surface plasma resonance optical waveguide sensor based on dual reflectors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The optical sensor is based on the principle of surface plasmon resonance technology. When light is incident on the medium-metal-substance interface, evanescent waves will be generated when the incident angle satisfies the total reflection condition, and at a certain incident angle (if the wavelength is fixed), the evanescent wave satisfies the resonance condition, Thus, surface plasmon waves are excited. The refractive index of the measured substance is related to the resonance angle. When the refractive index of the measured substance is changed, the resonance angle of the excited surface plasmon wave will change accordingly, so we can infer the measured substance through the shift of the resonance angle. changes in the refractive index.

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Such as Figure 2-5 As shown, the surface plasmon resonance optical waveguide sensor based on th...

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
heightaaaaaaaaaa
widthaaaaaaaaaa
refractive indexaaaaaaaaaa
Login to View More

Abstract

The invention discloses a surface plasma resonance optical waveguide sensor based on dual reflectors, which comprises an input waveguide array, a free propagation area, two metal sensing layers, an output waveguide array and a detector array, wherein the two metal sensing layers are plated on a reflection end plane and a reflection end curve of the free propagation area; the two metal sensing layers are etched with deep etched grooves; incident light is guided from a waveguide in the input waveguide array, enters one end of the free propagation area, and reflected by the reflection end plane and the reflection end curve of the free propagation area, and finally arrives at the detector array through the output waveguide array. By virtue of two reflectors, the detecting precision of the sensor is greatly improved; the sensor can be used to detect two substances at the same time, so that much detecting time can be saved; the curve is taken as the reflector, so that the detecting range and the detecting precision are improved; the space distance required for propagation is reduced; and the size of the sensor is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of surface plasmon resonance, in particular to a surface plasmon resonance optical waveguide sensor based on double reflection surfaces. Background technique [0002] In recent decades, surface plasmon resonance technology has received more and more attention, and has been widely used in food, pharmaceutical, chemical, and clinical testing. The advantages of real-time monitoring and no need for calibration make surface plasmon technology have obvious advantages in biological monitoring. [0003] Traditional volume prism surface plasmon resonance sensors such as figure 1 As shown, its technical disadvantages are that the device is bulky and costly, and it can only detect one substance at the same time. Contents of the invention [0004] The object of the present invention is to provide a surface plasmon resonance optical waveguide sensor based on double reflection surfaces to address the deficiencies of t...

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): G01N21/552
Inventor 李明宇张伟何建军
Owner ZHEJIANG UNIV
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
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