Polarization multiplexing multichannel high-Q terahertz sensing system Article Swipe
YOU?
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· 2023
· Open Access
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· DOI: https://doi.org/10.3389/fnano.2023.1112346
Terahertz functional devices with high-Q factor play an important role in spectral sensing, security imaging, and wireless communication. The reported terahertz devices based on the electromagnetic induction transparency (EIT) effect cannot meet the needs of high-Q in practical applications due to the low-Q factor. Therefore, to increase the Q-factor of resonance, researchers introduced the concept of bound state in the continuum (BIC). In the quasi-BIC state, the metasurface can be excited by the incident wave and provide resonance with a high-Q factor because the condition that the resonant state of the BIC state is orthogonal is not satisfied. The split ring resonator (SRR) is one of the most representative artificial microstructures in the metasurface field, and it shows great potential in BIC. In this paper, based on the classical single-SRR array structure, we combine the large and small SRR and change the resonance mode of the inner and outer SRR by changing the outer radius of the inner SRR. The metasurface based on parameter-tuned BIC verified that the continuous modulation of parameters in a system could make a pair of resonant states strongly coupled, and the coherent cancellation of the resonant states will cause the linewidth of one of the resonant states to disappear, thus forming BIC. Compared with the single-SRR array metasurface based on symmetry-protected BIC, the dual-SRR array metasurface designed in this paper has multiple accidental BICs and realizes multichannel multiplexing of X-polarization and Y-polarization. It provides a brilliant platform for high-sensitivity optical sensor array, low threshold laser and efficient optical harmonic generation.
Related Topics
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3389/fnano.2023.1112346
- https://www.frontiersin.org/articles/10.3389/fnano.2023.1112346/pdf
- OA Status
- gold
- Cited By
- 6
- References
- 33
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4319602798
Raw OpenAlex JSON
- OpenAlex ID
-
https://openalex.org/W4319602798Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.3389/fnano.2023.1112346Digital Object Identifier
- Title
-
Polarization multiplexing multichannel high-Q terahertz sensing systemWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2023Year of publication
- Publication date
-
2023-02-08Full publication date if available
- Authors
-
Xiuyu Wang, Xiaoman Wang, Qun Ren, Haocheng Cai, Jihong Xin, Yuxin Lang, Xiaofei Xiao, Zhihao Lan, Jian Wei You, Wei E. I. ShaList of authors in order
- Landing page
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https://doi.org/10.3389/fnano.2023.1112346Publisher landing page
- PDF URL
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https://www.frontiersin.org/articles/10.3389/fnano.2023.1112346/pdfDirect link to full text PDF
- Open access
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YesWhether a free full text is available
- OA status
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goldOpen access status per OpenAlex
- OA URL
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https://www.frontiersin.org/articles/10.3389/fnano.2023.1112346/pdfDirect OA link when available
- Concepts
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Terahertz radiation, Multiplexing, Physics, Q factor, Resonator, Split-ring resonator, Optics, Polarization (electrochemistry), Optoelectronics, Telecommunications, Computer science, Physical chemistry, ChemistryTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
6Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 4, 2024: 1, 2023: 1Per-year citation counts (last 5 years)
- References (count)
-
33Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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