Terahertz Metamaterials for Free-Space and on-Chip Applications: From Active Metadevices to Topological Photonic Crystals
Terahertz (THz) waves have exhibited promising applications in imaging, sensing, and communications, especially for the next-generation wireless communications due to the large bandwidth and abundant spectral resources. Modulators and waveguides to manipulate THz waves are becoming key components to...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
American Association for the Advancement of Science (AAAS)
2022-01-01
|
| Series: | Advanced Devices & Instrumentation |
| Online Access: | http://dx.doi.org/10.34133/2022/9852503 |
| _version_ | 1811204146348425216 |
|---|---|
| author | Hongyang Xing Junxing Fan Dan Lu Zhen Gao Perry Ping Shum Longqing Cong |
| author_facet | Hongyang Xing Junxing Fan Dan Lu Zhen Gao Perry Ping Shum Longqing Cong |
| author_sort | Hongyang Xing |
| collection | DOAJ |
| description | Terahertz (THz) waves have exhibited promising applications in imaging, sensing, and communications, especially for the next-generation wireless communications due to the large bandwidth and abundant spectral resources. Modulators and waveguides to manipulate THz waves are becoming key components to develop the relevant technologies where metamaterials have exhibited extraordinary performance to control free-space and on-chip propagation, respectively. In this review, we will give a brief overview of the current progress in active metadevices and topological photonic crystals, for applications of terahertz free-space modulators and on-chip waveguides. In the first part, the most recent research progress of active terahertz metadevices will be discussed by combining metamaterials with various active media. In the second part, fundamentals of photonic topological insulations will be introduced where the topological photonic crystals are an emerging research area that would boost the development of on-chip terahertz communications. It is envisioned that the combination of them would find great potential in more advanced terahertz applications, such as reconfigurable topological waveguides and topologically-protected metadevices. |
| first_indexed | 2024-04-12T03:06:32Z |
| format | Article |
| id | doaj.art-a84bee232aa44a2f86e66c469d1c3426 |
| institution | Directory Open Access Journal |
| issn | 2767-9713 |
| language | English |
| last_indexed | 2024-04-12T03:06:32Z |
| publishDate | 2022-01-01 |
| publisher | American Association for the Advancement of Science (AAAS) |
| record_format | Article |
| series | Advanced Devices & Instrumentation |
| spelling | doaj.art-a84bee232aa44a2f86e66c469d1c34262022-12-22T03:50:29ZengAmerican Association for the Advancement of Science (AAAS)Advanced Devices & Instrumentation2767-97132022-01-01202210.34133/2022/9852503Terahertz Metamaterials for Free-Space and on-Chip Applications: From Active Metadevices to Topological Photonic CrystalsHongyang Xing0Junxing Fan1Dan Lu2Zhen Gao3Perry Ping Shum4Longqing Cong5Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, ChinaTerahertz (THz) waves have exhibited promising applications in imaging, sensing, and communications, especially for the next-generation wireless communications due to the large bandwidth and abundant spectral resources. Modulators and waveguides to manipulate THz waves are becoming key components to develop the relevant technologies where metamaterials have exhibited extraordinary performance to control free-space and on-chip propagation, respectively. In this review, we will give a brief overview of the current progress in active metadevices and topological photonic crystals, for applications of terahertz free-space modulators and on-chip waveguides. In the first part, the most recent research progress of active terahertz metadevices will be discussed by combining metamaterials with various active media. In the second part, fundamentals of photonic topological insulations will be introduced where the topological photonic crystals are an emerging research area that would boost the development of on-chip terahertz communications. It is envisioned that the combination of them would find great potential in more advanced terahertz applications, such as reconfigurable topological waveguides and topologically-protected metadevices.http://dx.doi.org/10.34133/2022/9852503 |
| spellingShingle | Hongyang Xing Junxing Fan Dan Lu Zhen Gao Perry Ping Shum Longqing Cong Terahertz Metamaterials for Free-Space and on-Chip Applications: From Active Metadevices to Topological Photonic Crystals Advanced Devices & Instrumentation |
| title | Terahertz Metamaterials for Free-Space and on-Chip Applications: From Active Metadevices to Topological Photonic Crystals |
| title_full | Terahertz Metamaterials for Free-Space and on-Chip Applications: From Active Metadevices to Topological Photonic Crystals |
| title_fullStr | Terahertz Metamaterials for Free-Space and on-Chip Applications: From Active Metadevices to Topological Photonic Crystals |
| title_full_unstemmed | Terahertz Metamaterials for Free-Space and on-Chip Applications: From Active Metadevices to Topological Photonic Crystals |
| title_short | Terahertz Metamaterials for Free-Space and on-Chip Applications: From Active Metadevices to Topological Photonic Crystals |
| title_sort | terahertz metamaterials for free space and on chip applications from active metadevices to topological photonic crystals |
| url | http://dx.doi.org/10.34133/2022/9852503 |
| work_keys_str_mv | AT hongyangxing terahertzmetamaterialsforfreespaceandonchipapplicationsfromactivemetadevicestotopologicalphotoniccrystals AT junxingfan terahertzmetamaterialsforfreespaceandonchipapplicationsfromactivemetadevicestotopologicalphotoniccrystals AT danlu terahertzmetamaterialsforfreespaceandonchipapplicationsfromactivemetadevicestotopologicalphotoniccrystals AT zhengao terahertzmetamaterialsforfreespaceandonchipapplicationsfromactivemetadevicestotopologicalphotoniccrystals AT perrypingshum terahertzmetamaterialsforfreespaceandonchipapplicationsfromactivemetadevicestotopologicalphotoniccrystals AT longqingcong terahertzmetamaterialsforfreespaceandonchipapplicationsfromactivemetadevicestotopologicalphotoniccrystals |