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Terahertz spectral range (frequencies of 0.1-1 THz) has recently emerged as the next frontier for non-destructive imaging, industrial sensing and ultra-fast wireless communications. Here, we review several classes of materials such as…

Optics · Physics 2019-11-07 Mathieu Poulin , Steven Giannacopoulos , Maksim Skorobogatiy

The efficient amplification and lasing of electromagnetic radiation at terahertz (THz) frequencies is a non-trivial task achieved mainly by quantum cascade laser configurations with limited tunability and narrowband functionality. There is…

Optics · Physics 2018-11-30 Tianjing Guo , Liang Zhu , Pai-Yen Chen , Christos Argyropoulos

Terahertz (THz) technology enables multi-Tbps satellite communications, but conventional semiconductor detectors suffer from fundamental performance degradation above 1 THz due to the Drude limit of free electrons. Here, we theoretically…

Mesoscale and Nanoscale Physics · Physics 2026-05-14 Zhi Li

Terahertz (THz) communication is widely deemed the next frontier of wireless networks owing to the abundant spectrum resources in the THz band. Whilst THz signals suffer from severe propagation losses, a massive antenna array can be…

Information Theory · Computer Science 2023-08-30 Konstantinos Dovelos , Stylianos D. Assimonis , Hien Quoc Ngo , Michail Matthaiou

Terahertz (THz) band communications and integrated sensing and communications (ISAC) are two main facets of the sixth generation wireless networks. In order to compensate the severe attenuation, the THz wireless systems employ large arrays,…

Signal Processing · Electrical Eng. & Systems 2024-08-20 Ahmet M. Elbir , Abdulkadir Celik , Ahmed M. Eltawil

We present an experimental and theoretical study of the optical properties of metal-dielectric-metal structures with patterned top metallic surfaces, in the THz frequency range. When the thickness of the dielectric slab is very small with…

Terahertz (THz) band communications is envisioned as a key technology for future wireless standards. Substantial progress has been made in this field, with advances in hardware design, channel models, and signal processing. High-rate…

Systems and Control · Electrical Eng. & Systems 2023-05-23 Arjun Singh , Vitaly Petrov , Hichem Guerboukha , Innem V. A. K. Reddy , Edward W. Knightly , Daniel M. Mittleman , Josep M. Jornet

Sixth-generation (6G) wireless networks are expected not only to provide high-speed connectivity but also to support reliable sensing capabilities, giving rise to the integrated sensing and communication (ISAC) paradigm. To enable higher…

Signal Processing · Electrical Eng. & Systems 2025-07-08 Fan Zhang , Tianqi Mao , Mingkun Li , Meng Hua , Jinshu Chen , Christos Masouros , Zhaocheng Wang

Terahertz (THz) integrated sensing and communication (ISAC) enables simultaneous data transmission with Terabit-per-second (Tbps) rate and millimeter-level accurate sensing. To realize such a blueprint, ultra-massive antenna arrays with…

Information Theory · Computer Science 2024-03-27 Yongzhi Wu , Chong Han , Meixia Tao

The rapid growth of artificial intelligence (AI) and data-centric computing is driving exabyte-scale data transfer, pushing conventional interconnect technologies toward fundamental bandwidth and energy limits. Although optical…

Technological advancements in the design of electronic and optical materials have opened up the possibility of utilizing the latest available Radio Frequency spectrum the Terahertz (THz) band. This band holds great promise for…

Systems and Control · Electrical Eng. & Systems 2025-08-01 Sofiane Latreche , Hocine Bellahsene , Abdelmalik Taleb-Ahmed

Intelligent reflecting surface (IRS)-assisted full-duplex (FD) terahertz (THz) communication systems have emerged as a promising paradigm to satisfy the escalating demand for ultra-high data rates and spectral efficiency in future wireless…

Information Theory · Computer Science 2025-10-30 Chi Qiu , Wen Chen , Qingqing Wu , Fen Hou , Wanming Hao , Ruiqi Liu , Derrick Wing Kwan Ng

In this work, we introduce a concept to enable dynamic beamforming of terahertz (THz) wavefronts using applied magnetic fields (B). The proposed system exploits the magnetically switchable hyperbolic dispersion of the InSb semiconductor.…

TeraHertz (THz) communications can satisfy the high data rate demand with massive bandwidth. However, severe path attenuation and hardware imperfection greatly alleviate its performance. Therefore, we utilize the reconfigurable intelligent…

Information Theory · Computer Science 2022-03-22 Hongyang Du , Jiayi Zhang , Ke Guan , Dusit Niyato , Huiying Jiao , Zhiqin Wang , Thomas Kürner

Terahertz (THz) communication (0.1-10 THz) is regarded as a promising technology, which provides rich available bandwidth and high data rate of terahertz bit per second (Tbps). However, THz signals suffer from high path loss, which…

Information Theory · Computer Science 2021-05-26 Sha Xie , Lingxiang Li , Zhi Chen , Shaoqian Li

This work investigates the application of Beyond Diagonal Intelligent Reflective Surface (BD-IRS) to enhance THz downlink communication systems, operating in a hybrid: reflective and transmissive mode, to simultaneously provide services to…

Signal Processing · Electrical Eng. & Systems 2024-07-10 Asad Mahmood , Thang X. Vu , Symeon Chatzinotas , Björn Ottersten

Terahertz (THz)-band communications are a key enabler for future-generation wireless communications systems that promise to integrate a wide range of data-demanding applications. Recent advances in photonic, electronic, and plasmonic…

Signal Processing · Electrical Eng. & Systems 2021-08-19 Hadi Sarieddeen , Mohamed-Slim Alouini , Tareq Y. Al-Naffouri

Wireless communication in millimetre wave bands, namely above 20 GHz and up to 300 GHz, is foreseen as a key enabler technology for the next generation of wireless systems. The huge available bandwidth is contemplated to achieve high…

In the development of terahertz (THz) communication systems, the nanoantenna is the most significant component. Especially, the focus is to design highly directive antennas, because it enhances the performance of the overall system by…

Signal Processing · Electrical Eng. & Systems 2020-11-10 Sasmita Dash , Christos Liaskos , Ian F. Akyildiz , Andreas Pitsillides

Terahertz (THz) fiber that provides high-speed connections is an essential component in THz communication systems. The emerging space-division-multiplexing technology is expected to increase the transmission capacity of THz communications.…