Optical Refractive Index Sensing Based on High-Q Bound States in the Continuum in Free-Space Coupled Photonic Crystal Slabs

Optical Refractive Index Sensing Based on High-Q Bound States in the Continuum in Free-Space Coupled Photonic Crystal Slabs

High sensitivity (S) and high quality factor (Q) are desirable to achieve low detection limit in label-free optical sensors. In this paper, we theoretically demonstrate that single-layer and coupled bi-layer photonic crystal slabs (PCS) possess simultaneously high S and high Q near the bound states...

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Bibliographic Details
Main Authors: Yonghao Liu, Weidong Zhou, Yuze Sun
Format: Article
Language:English
Published: MDPI AG 2017-08-01
Series:Sensors
Subjects:
optical sensor
Fano resonance
label-free sensor
photonic crystals
bound states in the continuum
Online Access:https://www.mdpi.com/1424-8220/17/8/1861

Internet

https://www.mdpi.com/1424-8220/17/8/1861

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