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Compared with adjacent microwaves and infrared frequencies, terahertz (THz) frequency offers numerous advantages for imaging applications. The unique THz spectral signatures of chemicals allow the development of THz imaging systems for…

Superconductivity · Physics 2026-04-08 Manabu Tsujimoto , Kaveh Delfanazari , Takanari Kashiwagi , Toshiaki Hattori , Kazuo Kadowaki

Recent advancements in sensing, measurement, and computing technologies have significantly expanded the potential for signal-based applications, leveraging the synergy between signal processing and Machine Learning (ML) to improve both…

Signal Processing · Electrical Eng. & Systems 2024-03-27 Sulaiman Aburakhia , Abdallah Shami , George K. Karagiannidis

Following recent advances in terahertz (THz) technology, there is a consensus on the crucial role of THz communications in the next generation of wireless systems. Aiming at catalyzing THz communications research, we propose TeraMIMO, an…

Many components for terahertz (THz) optical filtering are mechanically fragile and are hard to produce with large aperture, making them unsuitable for applications where larger THz beam diameter is required. In this work, the THz optical…

Wireless communication systems to date primarily rely on the orthogonality of resources to facilitate the design and implementation, from user access to data transmission. Emerging applications and scenarios in the sixth generation (6G)…

Signal Processing · Electrical Eng. & Systems 2024-11-21 Wei Chen , Yuanwei Liu , Hamid Jafarkhani , Yonina C. Eldar , Peiying Zhu , Khaled B Letaief

Terahertz (THz) communication is considered to be a promising technology for future 6G network. To overcome the severe attenuation and relieve the high power consumption, massive MIMO with hybrid precoding has been widely considered for THz…

Information Theory · Computer Science 2021-08-19 Jingbo Tan , Linglong Dai

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

Recently, digital holographic imaging techniques (including methods with heterodyne detection) have found increased attention in the terahertz (THz) frequency range. However, holographic techniques rely on the use of a reference beam in…

Optics · Physics 2022-12-14 Mingjun Xiang , Hui Yuan , Lingxiao Wang , Kai Zhou , Hartmut G. Roskos

The widespread adoption of mobile communication technology has led to a severe shortage of spectrum resources, driving the development of cognitive radio technologies aimed at improving spectrum utilization, with spectrum sensing being the…

Signal Processing · Electrical Eng. & Systems 2025-04-11 Shilian Zheng , Zhihao Ye , Luxin Zhang , Keqiang Yue , Zhijin Zhao

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…

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

Millimeter-wave (mmWave) and terahertz (THz) communication systems adopt large antenna arrays to ensure adequate receive signal power. However, adjusting the narrow beams of these antenna arrays typically incurs high beam training overhead…

Information Theory · Computer Science 2023-02-15 Shoaib Imran , Gouranga Charan , Ahmed Alkhateeb

Terahertz (THz) communication is emerging as a pivotal enabler for 6G and beyond wireless systems owing to its multi-GHz bandwidth. One of its novel applications is in wireless data centers, where it enables ultra-high data rates while…

Information Theory · Computer Science 2025-04-30 Wenqi Zhao , Sergi Abadal , Guochao Song , Jiamo Jiang , Chong Han

The promising way to provide sufficient transmission capacity is by accessing transmission bands at higher carrier frequencies. This desire for higher carrier frequency or more bandwidth led the researchers to take advantage of the…

Signal Processing · Electrical Eng. & Systems 2024-12-30 Sasmita Dash , Amalendu Patnaik

Facilitated by rapid technological development of the near-space platform stations (NSPS), near-space communication (NS-COM) is envisioned to play a pivotal role in the space-air-ground integrated network for sixth-generation (6G)…

Signal Processing · Electrical Eng. & Systems 2022-07-26 Tianqi Mao , Leyi Zhang , Zhenyu Xiao , Zhu Han , Xiang-Gen Xia

The terahertz (THz) spectral domain offers a myriad of applications spanning chemical spectroscopy, medicine, security and imaging[1]. It has also recently become a playground for fundamental studies of light-matter interactions [2-6]. THz…

Terahertz (THz) waves are electromagnetic waves in the 0.1 to 10 THz frequency range, and THz imaging is utilized in a range of applications, including security inspections, biomedical fields, and the non-destructive examination of…

Image and Video Processing · Electrical Eng. & Systems 2023-12-05 Woon-Ha Yeo , Seung-Hwan Jung , Seung Jae Oh , Inhee Maeng , Eui Su Lee , Han-Cheol Ryu

Intelligent signal processing for wireless communications is a vital task in modern wireless systems, but it faces new challenges because of network heterogeneity, diverse service requirements, a massive number of connections, and various…

Signal Processing · Electrical Eng. & Systems 2024-10-30 Quoc-Viet Pham , Nhan Thanh Nguyen , Thien Huynh-The , Long Bao Le , Kyungchun Lee , Won-Joo Hwang

The terahertz (THz) band is a promising solution to the increasing data traffic demands of future wireless networks. However, developing transceivers for THz communication is a complex and toilsome task due to the difficulty in designing…

Signal Processing · Electrical Eng. & Systems 2025-02-10 Dogus Can Sevdiren , Aydin Sezgin , Mohammad Soleymani

Sub-THz bands are promising high bandwidth and data rates, and in the recent years the device technologies made large progress and provided a multitude of transceiver, power amplifier (PA) and phased array devices supporting the frequency…

Signal Processing · Electrical Eng. & Systems 2026-04-17 Hardy Halbauer , Le Hang Nguyen , Thorsten Wild