Enhancing Terahertz Absorption Spectrum Based on a Tunable Defect Cavity of One-Dimensional Photonic Crystal in the Combined Coaxial Waveguide

Terahertz (THz) molecular fingerprint spectroscopy provides a powerful label-free tool for detecting trace-amount analytes. Introducing extra microstructures such as metasurfaces to confine the field energy is essential to improve the sensitivity. However, the area of analyte film on conventional en...

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Bibliographic Details
Main Authors: Lu Nie, Xiangjun Li, Dongzhe Chen, Zihao Wang, Dexian Yan
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Photonics
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Online Access:https://www.mdpi.com/2304-6732/12/1/14
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