Terahertz sensor based on a three-dimensional double I-type metamaterial integrated microfluidic channel.
Appl Opt
; 60(13): 3816-3822, 2021 May 01.
Article
em En
| MEDLINE
| ID: mdl-33983317
ABSTRACT
Terahertz metamaterial sensors have received extensive attention in biosensing applications. However, sensitivity toward terahertz frequencies emitted by liquid samples remains challenging because of the strong absorption of terahertz waves by water. Here, we present a highly sensitive terahertz sensor based on a three-dimensional double I-type metamaterial integrated microfluidic channel. The designed sensor produces an inductive-capacitive (LC) resonance with a high quality factor of approximately 72, while demonstrating a maximum sensitivity of 832 GHz/RIU. Furthermore, we analyzed the relationship between the resonance frequency and ethanol concentration. These findings would promote the application of terahertz technology in label-free and rapid biomedical sensing as well as substance detection.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Técnicas Biossensoriais
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Microfluídica
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Imagem Terahertz
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article