Search International and National Patent Collections

1. (WO2018099408) HIGHLY SENSITIVE, GRAPHENE SURFACE WAVE BASED MULTIPLE LIGHT BEAM REFRACTIVE INDEX DETECTION APPARATUS AND METHOD

Pub. No.:    WO/2018/099408    International Application No.:    PCT/CN2017/113650
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Thu Nov 30 00:59:59 CET 2017
IPC: G01N 21/41
Applicants: BEIJING CARBON CENTURY TECHNOLOGY CO. LTD
北京碳世纪科技有限公司
XING, Fei
邢飞
Inventors: XING, Fei
邢飞
YAN, Liqun
闫立群
Title: HIGHLY SENSITIVE, GRAPHENE SURFACE WAVE BASED MULTIPLE LIGHT BEAM REFRACTIVE INDEX DETECTION APPARATUS AND METHOD
Abstract:
A highly sensitive, graphene surface wave based multiple light beam refractive index detection apparatus, comprising a detection light source apparatus (1), a graphene based refractive index probe (2), information light beam extraction apparatuses (3), optoelectronic detectors (4), data collection chips and a computer (5); the detection light source apparatus (1) emits multiple light beams arranged circumferentially and uniformly at intervals, the light beams being s-polarized light or light having an s-polarized component; the refractive index probe (2) is used for receiving the multiple light beams so as to form separately detection windows on the graphene; each of the information light beam extraction apparatuses (3) separately receives a reflected light beam carrying refractive index information, and further extracts the s-polarized light beam component in the reflected light beam; each of the s-polarized light beam components separately enters each of the multiple optoelectronic detectors (4) disposed at the corresponding positions, and each of the optoelectronic detectors (4) separately converts the light intensity value of the received light into a voltage value; in addition, each of the optoelectronic detectors (4) is separately and electrically connected to a data collection chip, and each of the data collection chips is separately and electrically connected to the computer (5).