$High-Sensitive Refractive Index Sensing Enabled by Topological Charge Evolution$

High-Sensitive Refractive Index Sensing Enabled by Topological Charge Evolution

A high-sensitive refractive index sensor is proposed and demonstrated by utilizing merging bound states in the continuum, namely a set of integer topological charges in the momentum space. Through varying cladding refractive index nc, the topological charges continuously depart from the merging stat...

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Bibliographic Details
Main Authors:	Jiaxin Lv, Zihao Chen, Xuefan Yin, Zixuan Zhang, Weiwei Hu, Chao Peng
Format:	Article
Language:	English
Published:	IEEE 2020-01-01
Series:	IEEE Photonics Journal
Subjects:	Photonic crystal optical sensor high-<inline-formula xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <tex-math notation="LaTeX">$Q$</tex-math> </inline-formula> resonance topological charge bound state in the continuum
Online Access:	https://ieeexplore.ieee.org/document/9171415/

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