公开(公告)号：US09841376B2

公开(公告)日：2017-12-12

申请号：US15071988

申请日：2016-03-16

Applicant: Xi'an Institute of Optics and Precision Mechanics of CAS

Inventor： Wenfu Zhang ,  Guoxi Wang ,  Lingxuan Zhang ,  Wei Zhao

IPC: G01N21/55 ,  G01N21/552

CPC classification number: G01N21/554 ,  B82Y20/00

Abstract: The invention relates to a metamaterial nano-sensing system, and in particular to a high-sensitivity metamaterial nano-sensing system with an ultra-narrow line width spectral response. The system includes an input light path, a metamaterial nano-sensing unit and an output light path which are sequentially provided along a direction of a light path, and the metamaterial nano-sensing unit includes a Bragg grating and a metallic periodic array arranged above the Bragg grating. The nano-sensing system provided by the invention has an ultra-narrow line width spectral response, so that sensitivity of a nanosensor is effectively improved, and broad application prospect in the fields of portable biosensing, drug development and detection, environment monitoring and the like is ensured.