Chalcogenide phase-change material advances programmable terahertz metamaterials: a non-volatile perspective for reconfigurable intelligent surfaces
Terahertz (THz) waves have gained considerable attention in the rising 6G communication due to their large bandwidth. However, the cost and power consumption become the major constraints for the commercialization of 6G THz systems as the frequency increases. Reconfigurable intelligent surface (RIS)...
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| Format: | Article |
| Language: | English |
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De Gruyter
2024-01-01
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| Series: | Nanophotonics |
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| Online Access: | https://doi.org/10.1515/nanoph-2023-0645 |
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| author | Chen Kai Song Wenju Li Zhaolin Wang Zihao Ma Junqing Wang Xinjie Sun Tao Guo Qinglei Shi Yanpeng Qin Wei-Dong Song Aimin Chen Hou-Tong Zhang Yifei |
| author_facet | Chen Kai Song Wenju Li Zhaolin Wang Zihao Ma Junqing Wang Xinjie Sun Tao Guo Qinglei Shi Yanpeng Qin Wei-Dong Song Aimin Chen Hou-Tong Zhang Yifei |
| author_sort | Chen Kai |
| collection | DOAJ |
| description | Terahertz (THz) waves have gained considerable attention in the rising 6G communication due to their large bandwidth. However, the cost and power consumption become the major constraints for the commercialization of 6G THz systems as the frequency increases. Reconfigurable intelligent surface (RIS) comprising active metasurfaces and digital controllers has been proposed for beamforming in the 6G multiple-input-multiple-output systems, showing good potential to suppress the system size, weight, and power consumption (SWaP). Currently, their controlling diodes can hardly work up to THz frequencies. Therefore, several active stimuli have been investigated as alternatives. Among them, chalcogenide phase-change material Ge2Sb2Te5 (GST) addresses large modulation depth, picosecond switching speed, and non-volatile properties. Notably, the non-volatile GST may enable RIS systems with memory and low control power. This work briefly reviews the advances of GST-tuned THz metamaterials (MTMs), discusses the current obstacles to overcome, and gives a perspective of GST applications in the rising 6G communications. |
| format | Article |
| id | doaj-art-b6cb2454bd0a4bd882bad03bdcc362d1 |
| institution | OA Journals |
| issn | 2192-8614 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj-art-b6cb2454bd0a4bd882bad03bdcc362d12025-08-20T02:23:36ZengDe GruyterNanophotonics2192-86142024-01-0113122101210510.1515/nanoph-2023-0645Chalcogenide phase-change material advances programmable terahertz metamaterials: a non-volatile perspective for reconfigurable intelligent surfacesChen Kai0Song Wenju1Li Zhaolin2Wang Zihao3Ma Junqing4Wang Xinjie5Sun Tao6Guo Qinglei7Shi Yanpeng8Qin Wei-Dong9Song Aimin10Chen Hou-Tong11Zhang Yifei12Shandong Technology Center of Nanodevices and Integration, School of Integrated Circuits,Shandong University, Jinan, 250100, ChinaShandong Technology Center of Nanodevices and Integration, School of Integrated Circuits,Shandong University, Jinan, 250100, ChinaShandong Technology Center of Nanodevices and Integration, School of Integrated Circuits,Shandong University, Jinan, 250100, ChinaInstitute of Novel Semiconductors, Shandong University, Jinan, 250100, ChinaShandong Technology Center of Nanodevices and Integration, School of Integrated Circuits,Shandong University, Jinan, 250100, ChinaShandong Technology Center of Nanodevices and Integration, School of Integrated Circuits,Shandong University, Jinan, 250100, ChinaShandong Technology Center of Nanodevices and Integration, School of Integrated Circuits,Shandong University, Jinan, 250100, ChinaShandong Technology Center of Nanodevices and Integration, School of Integrated Circuits,Shandong University, Jinan, 250100, ChinaShandong Technology Center of Nanodevices and Integration, School of Integrated Circuits,Shandong University, Jinan, 250100, ChinaDepartment of Critical Care Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250100, ChinaShandong Technology Center of Nanodevices and Integration, School of Integrated Circuits,Shandong University, Jinan, 250100, ChinaCenter for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, 87545, USAShandong Technology Center of Nanodevices and Integration, School of Integrated Circuits,Shandong University, Jinan, 250100, ChinaTerahertz (THz) waves have gained considerable attention in the rising 6G communication due to their large bandwidth. However, the cost and power consumption become the major constraints for the commercialization of 6G THz systems as the frequency increases. Reconfigurable intelligent surface (RIS) comprising active metasurfaces and digital controllers has been proposed for beamforming in the 6G multiple-input-multiple-output systems, showing good potential to suppress the system size, weight, and power consumption (SWaP). Currently, their controlling diodes can hardly work up to THz frequencies. Therefore, several active stimuli have been investigated as alternatives. Among them, chalcogenide phase-change material Ge2Sb2Te5 (GST) addresses large modulation depth, picosecond switching speed, and non-volatile properties. Notably, the non-volatile GST may enable RIS systems with memory and low control power. This work briefly reviews the advances of GST-tuned THz metamaterials (MTMs), discusses the current obstacles to overcome, and gives a perspective of GST applications in the rising 6G communications.https://doi.org/10.1515/nanoph-2023-06456gterahertzge2sb2te5 non-volatilereconfigurable intelligent surface |
| spellingShingle | Chen Kai Song Wenju Li Zhaolin Wang Zihao Ma Junqing Wang Xinjie Sun Tao Guo Qinglei Shi Yanpeng Qin Wei-Dong Song Aimin Chen Hou-Tong Zhang Yifei Chalcogenide phase-change material advances programmable terahertz metamaterials: a non-volatile perspective for reconfigurable intelligent surfaces Nanophotonics 6g terahertz ge2sb2te5 non-volatile reconfigurable intelligent surface |
| title | Chalcogenide phase-change material advances programmable terahertz metamaterials: a non-volatile perspective for reconfigurable intelligent surfaces |
| title_full | Chalcogenide phase-change material advances programmable terahertz metamaterials: a non-volatile perspective for reconfigurable intelligent surfaces |
| title_fullStr | Chalcogenide phase-change material advances programmable terahertz metamaterials: a non-volatile perspective for reconfigurable intelligent surfaces |
| title_full_unstemmed | Chalcogenide phase-change material advances programmable terahertz metamaterials: a non-volatile perspective for reconfigurable intelligent surfaces |
| title_short | Chalcogenide phase-change material advances programmable terahertz metamaterials: a non-volatile perspective for reconfigurable intelligent surfaces |
| title_sort | chalcogenide phase change material advances programmable terahertz metamaterials a non volatile perspective for reconfigurable intelligent surfaces |
| topic | 6g terahertz ge2sb2te5 non-volatile reconfigurable intelligent surface |
| url | https://doi.org/10.1515/nanoph-2023-0645 |
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