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The scarcity of spectrum resources in current wireless communication systems has sparked enormous research interest in the terahertz (THz) frequency band. This band is characterized by fundamentally different propagation properties…

Signal Processing · Electrical Eng. & Systems 2020-04-17 Akram Shafie , Nan Yang , Zhuo Sun , Salman Durrani

Communications in the terahertz band (THz) (0.1--10~THz) have been regarded as a promising technology for future 6G and beyond wireless systems, to overcome the challenges of evergrowing wireless data traffic and crowded spectrum. As the…

Information Theory · Computer Science 2022-05-26 Chong Han , Weijun Gao , Nan Yang , Josep M. Jornet

The increasing demand for ultra-high throughput in ultra-dense networks might take a toll on 5G capacity. Moreover, with Internet-of-Things (IoT) and the growing use-cases for indoor killer-applications, it will be necessary to look beyond…

Networking and Internet Architecture · Computer Science 2020-03-17 Rohit Singh , Douglas Sicker

Coherent, continuous-wave, and electrically tunable chip-scale terahertz (THz) sources are critical for emerging applications in sensing, imaging, spectroscopy, communication, space and quantum technologies. Here, we demonstrate a robust…

Communication at terahertz (THz) frequency bands is a promising solution for achieving extremely high data rates in next-generation wireless networks. While the THz communication is conventionally envisioned for short-range wireless…

Information Theory · Computer Science 2021-02-11 Arian Ahmadi , Omid Semiari

Terahertz (THz) systems have the benefit of high bandwidth and hence are capable of supporting ultra-high data rates, albeit at the cost of high pathloss. Hence they tend to harness high-gain beamforming. Therefore a novel hybrid 3D…

Signal Processing · Electrical Eng. & Systems 2022-02-07 Xufang Wang , Zihuai Lin , Feng Lin , Lajos Hanzo , Life Fellow

High-rate satellite communications among hundreds and even thousands of satellites deployed at low-Earth orbits (LEO) will be an important element of the forthcoming sixth-generation (6G) of wireless systems beyond 2030. With millimeter…

Networking and Internet Architecture · Computer Science 2024-10-28 Sergi Aliaga , Vitaly Petrov , Josep M. Jornet

In this work, a novel infinity 3D printing technique is explored to fabricate continuous multi-meter-long low-loss near-zero dispersion suspended-core polypropylene fibers for application in terahertz (THz) communications. Particular…

Optics · Physics 2021-06-10 Guofu Xu , Kathirvel Nallappan , Yang Cao , Maksim Skorobogatiy

We propose using THz frequency selective surfaces interrogated with THz subwavelength optical fibers as sensors for monitoring of the optical properties of thick films that are brought in contact with such surfaces. Changes in the test film…

Optics · Physics 2013-11-26 Martin Girard , Maksim Skorobogatiy

Terahertz (THz) wave shows great potential in non-destructive testing, bio detection and cancer imaging. Recent progresses on THz wave near-field probes/apertures enable mechanically raster scanning of an object's surface in the near-field…

Terahertz (THz) wireless communication is envisioned as a promising technology, which is capable of providing ultra-high-rate transmission up to Terabit per second. However, some hardware imperfections, which are generally neglected in the…

Signal Processing · Electrical Eng. & Systems 2021-06-24 Tianqi Mao , Zhaocheng Wang

High-speed trains are one of the most relevant scenarios for the fifth-generation (5G) mobile communications and the "smart rail mobility" vision, where a high-data-rate wireless connectivity with up to several GHz bandwidths will be…

Signal Processing · Electrical Eng. & Systems 2025-01-30 Ke Guan , Juan Moreno Garcia-Lloygorri , Bo Ai , Cesar Briso-Rodriguez , Bile Peng , Danping He , Andrej Hrovat , Zhangdui Zhong , Thomas Kurner

Terahertz (THz) tomographic imaging has recently attracted significant attention thanks to its non-invasive, non-destructive, non-ionizing, material-classification, and ultra-fast nature for object exploration and inspection. However, its…

Image and Video Processing · Electrical Eng. & Systems 2023-05-01 Weng-Tai Su , Yi-Chun Hung , Po-Jen Yu , Shang-Hua Yang , Chia-Wen Lin

With abundant bandwidth resource, the Terahertz band (0.1~THz to 10~THz) is envisioned as a key technology to realize ultra-high data rates in the 6G and beyond mobile communication systems. However, moving to the THz band, existing channel…

Information Theory · Computer Science 2022-11-22 Yuanbo Li , Yiqin Wang , Yi Chen , Ziming Yu , Chong Han

Many emerging technologies, such as ultra-massive multiple-input multiple-output (UM-MIMO), terahertz (THz) communications are under active discussion as promising technologies to support the extremely high access rate and superior network…

Signal Processing · Electrical Eng. & Systems 2020-04-27 Wankai Tang , Ming Zheng Chen , Jun Yan Dai , Yong Zeng , Xinsheng Zhao , Shi Jin , Qiang Cheng , Tie Jun Cui

Graphene-based terahertz (THz) devices have emerged as promising platforms for a variety of applications, leveraging graphene's unique optoelectronic properties. This review explores recent advancements in utilizing graphene in THz…

The use of sub-Terahertz (sub-THz) band is gaining considerable attention in 6G networks. In this study, we introduce hardware and propagation integrated 3D Propagation Model to describe sub-THz channels and discuss its advantages over both…

Signal Processing · Electrical Eng. & Systems 2024-03-29 Eray Guven , Gunes Karabulut Kurt

Terahertz imaging holds great potential for non-destructive material inspection, but practical implementation has been limited by resolution constraints. In this study, we present a single-pixel THz imaging system based on a confocal…

Frequency combs have revolutionized time and frequency metrology and in recent years, new frequency comb lasers that are highly compact or even on-chip have been demonstrated in the mid-infrared and THz regions of the electromagnetic…

Optics · Physics 2019-07-17 Giacomo Scalari , Jérôme Faist , Nathalie Picqué

Sub-terahertz (Sub-THz) waves possess exceptional attributes, capable of penetrating non-metallic and non-polarized materials while ensuring bio-safety. However, their practicality in imaging is marred by the emergence of troublesome…

Optics · Physics 2024-03-07 Shao-Hsuan Wu , Yiyao Zhang , Ke Chen , Shang Hua Yang