Multifield-Controlled Terahertz Hybrid Metasurface for Switches and Logic Operations Article Swipe
Xilai Zhao
,
Yanan Jiao
,
Jun Liang
,
Jing Lou
,
Jing Zhang
,
Jiawen Lv
,
Xiaohui Du
,
Lian Shen
,
Bin Zheng
,
Tong Cai
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3390/nano12213765
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3390/nano12213765
Terahertz (THz) meta-devices are considered to be a promising framework for constructing integrated photonic circuitry, which is significant for processing the upsurge of data brought about by next-generation telecommunications. However, present active metasurfaces are typically restricted by a single external driving field, a single modulated frequency, fixed switching speed, and deficiency in logical operation functions which prevents devices from further practical applications. Here, to overcome these limitations, we propose a hybrid THz metasurface consisting of vanadium dioxide (VO2) and germanium (Ge) that enables electrical and optical tuning methods individually or simultaneously and theoretically investigate its performance. Each of the two materials is arranged in the meta-atom to dominate the resonance strength of toroidal or magnetic dipoles. Controlled by either or both of the external excitations, the device can switch on or off at four different frequencies, possessing two temporal degrees of freedom in terms of manipulation when considering the nonvolatility of VO2 and ultrafast photogenerated carriers of Ge. Furthermore, the “AND” and “OR” logic operations are respectively achieved at two adjacent frequency bands by weighing normalized transmission amplitude. This work may provide an auspicious paradigm of THz components, such as dynamic filters, multiband switches, and logical modulators, potentially promoting the design and implementation of multifunctional electro-optical devices in future THz computing and communication.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/nano12213765
- https://www.mdpi.com/2079-4991/12/21/3765/pdf?version=1666863288
- OA Status
- gold
- Cited By
- 8
- References
- 60
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4307291637
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4307291637Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/nano12213765Digital Object Identifier
- Title
-
Multifield-Controlled Terahertz Hybrid Metasurface for Switches and Logic OperationsWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
-
2022Year of publication
- Publication date
-
2022-10-26Full publication date if available
- Authors
-
Xilai Zhao, Yanan Jiao, Jun Liang, Jing Lou, Jing Zhang, Jiawen Lv, Xiaohui Du, Lian Shen, Bin Zheng, Tong CaiList of authors in order
- Landing page
-
https://doi.org/10.3390/nano12213765Publisher landing page
- PDF URL
-
https://www.mdpi.com/2079-4991/12/21/3765/pdf?version=1666863288Direct link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
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https://www.mdpi.com/2079-4991/12/21/3765/pdf?version=1666863288Direct OA link when available
- Concepts
-
Terahertz radiation, Logic gate, Computer science, Terahertz metamaterials, Optoelectronics, Materials science, Electrical engineering, Electronic engineering, Physics, Engineering, Optics, Far-infrared laser, LaserTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
8Total citation count in OpenAlex
- Citations by year (recent)
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2025: 3, 2024: 4, 2023: 1Per-year citation counts (last 5 years)
- References (count)
-
60Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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