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An optical waveguide biosensor applied to smartphones

A technology of biosensors and smartphones, applied in instruments, scientific instruments, and material analysis through optical means, can solve the problems of increasing the cost of mobile devices, and achieve the effects of reducing production costs, small size, and increasing sensitivity

Active Publication Date: 2017-05-03
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional integrated optical waveguide sensors require spectrometers to measure spectral information, or highly stable lasers as light sources, which greatly increase the cost of mobile devices

Method used

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  • An optical waveguide biosensor applied to smartphones
  • An optical waveguide biosensor applied to smartphones
  • An optical waveguide biosensor applied to smartphones

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Embodiment 1

[0024] Such as figure 1 As shown, the present invention is an optical waveguide biosensor applied to a smart phone, including a smart phone 1, an optical waveguide biosensor chip 2, a fixing fixture 3 and a focusing lens 4; wherein, the LED flashlight 11 of the smart phone 1 and The camera 12 serves as the incident light source and detector of the optical waveguide sensor chip 2 respectively.

[0025] Such as figure 2 As shown, the optical waveguide biosensor chip 2 includes a grating coupling input waveguide 204, a Y branch waveguide 22 and a plurality of sensor chip units 21; the input end of the Y branch waveguide 22 is connected to the grating coupling input waveguide 204, and each output end is connected to a sensor chip Unit 21. The material of the substrate of the optical waveguide biosensor chip 2 is quartz glass, the material of the core layer is SiON, and the material of the upper cladding layer is SiO 2 .

[0026] Such as image 3 As shown, each sensor chip un...

Embodiment 2

[0031] Figure 10 It is a structural schematic diagram of the second embodiment of the optical waveguide biosensor chip 2 of the present invention. The optical waveguide biosensor chip 2 includes a plurality of sensor chip units 21; each sensor chip unit 21 includes a grating coupling input waveguide 204, a reference ring resonator 206 coupled with the grating coupling input waveguide 204, and a reference ring resonator 206 The coupled connection waveguide 207, the sensing ring resonator 208 coupled with the connection waveguide 207, the grating coupling signal optical output waveguide 209 coupled with the sensing ring resonator 208; the sensing ring resonator 208 is provided with The sensing window 210, the waveguide surface of the sensing ring resonant cavity 208 has a specific adsorption biological surface film, the sensing window 210 is covered by the micro flow channel 211; the liquid to be measured is introduced into the sensing ring resonant cavity 208 through the micro...

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Abstract

The invention discloses an optical-waveguide biosensor for a smartphone. The optical-waveguide biosensor for a smartphone comprises a smartphone, an optical-waveguide biosensor chip, a fixing clamp and a focusing lens. The optical-waveguide biosensor chip comprises multiple sensor chip units comprising double-ring cascade waveguides. The fixing clamp fixes the optical-waveguide biosensor chip to the smartphone so it is guaranteed that light emitted by a LED flashlight of the smartphone is coupled with an input waveguide end of the optical-waveguide biosensor chip and light output by a sensor output waveguide array end is coupled with a camera detector array of the smartphone. The optical-waveguide biosensor realizes biological detection functions of the existing smartphone. Output waveguide ends of all the sensor units in the biosensor chip are corresponding to pixel of the smartphone camera. The optical-waveguide biosensor simultaneously carries out acquisition of information of a plurality of measured objects and conveniently transmits information of the measured objects by the smartphone.

Description

technical field [0001] The invention relates to an integrated optical waveguide biosensor based on cascaded double-ring resonant cavities, in particular to an integrated optical waveguide biosensor applicable to smart phones. Background technique [0002] Today, when smartphones are the main communication tool in people's daily life, mobile phone sensing has become a new field of interest for researchers. Sensors could make mobile phones the center of next-generation revolutions in social networking, green applications, global environmental monitoring, personal and public healthcare, video games, virtual reality and intelligent transportation systems. Cell phones are ubiquitous mobile devices, currently used by millions of people around the world. In the past few years, it has become more and more common to install sensors in mobile devices. Mobile phones can be used for sensor information acquisition, information processing, and data sharing with surrounding people. Today...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/17
Inventor 李明宇陈阳晴于放杨畅唐龙华宋金岩何建军
Owner ZHEJIANG UNIV