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1. (WO2018219344) SENSORS WITH GRADIENT NANOSTRUCTURES AND ASSOCIATED METHOD OF USE

Pub. No.:    WO/2018/219344    International Application No.:    PCT/CN2018/089512
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Sat Jun 02 01:59:59 CEST 2018
IPC: G01N 21/00
Applicants: THE UNIVERSITY OF HONG KONG
Inventors: LI, Wendi
ZHU, Zhouyang
LI, Shijie
Title: SENSORS WITH GRADIENT NANOSTRUCTURES AND ASSOCIATED METHOD OF USE
Abstract:
A plasmonic sensor with gradient nanostructures and a method of use thereof is provided. The gradient of shapes will induce different spectral responses at different region of the sensor and show different colors. When there is a change in the environment properties of a substance, such as refractive index, gas concentration or ion density changes, the sensor displays different images, e. g., redial intensity displays and radial color displays. An image recognition based method can be used to extract the environment property with high accuracy according to the sensor image.