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The applications of terahertz (THz) radiation for plant water status monitoring require systematic studies on interaction of THz wave and plants. Here, we present theoretical investigations on scattering behavior of THz waves reflected by…

Biological Physics · Physics 2020-10-28 Bin Li , Xiao Zhang , Rong Wang , Yu Mei , Jianjun Ma

We demonstrate efficient terahertz (THz) modulation by coupling graphene strongly with a broadband THz metasurface device. This THz metasurface, made of periodic gold slit arrays, shows near unity broadband transmission, which arises from…

Mesoscale and Nanoscale Physics · Physics 2015-06-23 S. -F. Shi , B. Zeng , H. -L. Han , X. Hong , H. -Z. Tsai , H. S. Jung , A. Zettl , M. F. Crommie , F. Wang

Compact and robust waveguide chips are crucial for new integrated terahertz applications, such as high-speed interconnections between processors and broadband short-range wireless communications. Progress on topological photonic crystals…

Terahertz (THz) band communication, ranging from 0.1 THz to 10 THz, is envisioned as a key enabling technology for next-generation networks and future applications such as inter-satellite communications and environmental sensing. The…

Signal Processing · Electrical Eng. & Systems 2024-11-20 Zhepu Yin , Weijun Gao , Chong Han

We study spectrum allocation for terahertz (THz) band communication (THzCom) systems, while considering the frequency and distance-dependent nature of THz channels. Different from existing studies, we explore multi-band-based spectrum…

Signal Processing · Electrical Eng. & Systems 2022-07-06 Akram Shafie , Nan Yang , Sheeraz Alvi , Chong Han , Salman Durrani , Josep M. Jornet

High absorption in a wide frequency band has attracted considerable interest since their potential applications in frequency spectrum imaging systems and anti-radar cloaking. In this paper, a polarization-independent, ultra-broadband and…

Optics · Physics 2014-09-23 Cheng Shi , XiaoFei Zang , XueBin Ji , Lin Chen , Bin Cai , YiMing Zhu

Automotive radars at the Terahertz (THz) frequency band have the potential to be compact and lightweight while providing high (nearly-optical) angular resolution. In this paper, we propose a bistatic THz automotive radar that employs the…

Signal Processing · Electrical Eng. & Systems 2023-02-03 Sangeeta Bhattacharjee , Kumar Vijay Mishra , Ramesh Annavajjala , Chandra R. Murthy

In the evolving landscape of terahertz communication, the behavior of channels within indoor environments, particularly through glass doors, has garnered significant attention. This paper comprehensively investigates terahertz channel…

Optics · Physics 2024-02-06 Da Li , Wenbo Liu , Menghan Wei , Jiacheng Liu , Guohao Liu , Peian Li , Houjun Sun , Jianjun Ma

This paper presents a comprehensive quantitative comparison between Terahertz (THz) communication (TeraCom) and optical wireless communication (OWC) technologies, focusing on both indoor and outdoor environments. We propose a comparison…

Signal Processing · Electrical Eng. & Systems 2025-04-01 Mingqing Liu , Hossein Kazemi , Majid Safari , Iman Tavakkolnia , Harald Haas

Terahertz (THz) communications have naturally promising physical layer security (PLS) performance in the angular domain due to the high directivity feature brought by the ultra-massive multiple-antenna techniques. However, traditional…

Information Theory · Computer Science 2022-07-26 Weijun Gao , Xuyang Lu , Chong Han , Zhi Chen

Imaging systems operating in the terahertz part of the electromagnetic spectrum are in great demand because of the distinct characteristics of terahertz waves in penetrating many optically-opaque materials and providing unique spectral…

Optics · Physics 2024-01-09 Xurong Li , Deniz Mengu , Aydogan Ozcan , Mona Jarrahi

In the evolving domain of wireless communication, the investigation on terahertz (THz) frequency spectrum, spanning 0.1 to 10 THz, has become a critical focus for advancing ultra-high-speed data transmission technologies. The effective…

Applied Physics · Physics 2024-02-05 Guohao Liu , Xiangkun He , Jiabiao Zhao , Da Li , Hong Liang , Houjun Sun , Daniel M. Mittleman , Jianjun Ma

Tunable bandpass terahertz filters are demanded in various key applications such as hyperspectral imagers, miniaturized spectrometers, and high-speed wireless communication systems. Here, a mechanically reconfigurable double-layered…

Optics · Physics 2026-04-20 Sanaz Zarei

Future smart vehicles will incorporate high-data-rate communications and high-resolution radar sensing capabilities operating in the millimeter-wave and higher frequencies. These two systems are preparing to share and reuse a lot of common…

Networking and Internet Architecture · Computer Science 2024-10-30 Vitaly Petrov , Gabor Fodor , Joonas Kokkoniemi , Dmitri Moltchanov , Janne Lehtomaki , Sergey Andreev , Yevgeni Koucheryavy , Markku Juntti , Mikko Valkama

Terahertz (THz) communications will be pivotal in sixth-generation (6G) wireless networks, offering significantly wider bandwidths and higher data rates. However, the unique propagation characteristics of the THz frequency band, such as…

Networking and Internet Architecture · Computer Science 2024-09-17 Waqas Khalid , Heejung Yu , Farman Ali , Huiping Huang

Light-matter interactions are key in providing fundamental information about materials. Even in the linear-response regime, the spectroscopic response of a material encodes in it many properties of the ground state as well as of its…

Multi-functional wireless networks are rapidly evolving and aspire to become a promising attribute of the upcoming 6G networks. Enabling multiple simultaneous networking functions with a single radio fosters the development of more…

Networking and Internet Architecture · Computer Science 2022-08-09 Xavier Vilajosana , Guillem Boquet , Joan Melià , Pere Tuset-Peiró , Borja Martinez , Ferran Adelantado

The terahertz spectral region, which bridges between electronics and optics, is poised to play an important role in the development of transformative wireless communication and imaging systems with unprecedented functionality. Currently, a…

Applied Physics · Physics 2023-11-22 Chen Chen , Sai Chen , Yibo Ni , Yibao Xu , Yuanmu Yang

Terahertz (THz) wireless access is considered as a next step towards sixth generation (6G) cellular systems. By utilizing even higher frequency bands than 5G millimeter wave (mmWave) New Radio (NR), they will operate over extreme bandwidth…

Networking and Internet Architecture · Computer Science 2022-06-08 Eduard Sopin , Dmitri Moltchanov , Anastasia Daraseliya , Yevgeni Koucheryavy , Yuliya Gaidamaka

High-frequency terahertz (THz) detectors are vital for next-generation high-speed wireless communication systems. Graphene, with its high carrier mobility, broadband absorption, and weak electron-phonon coupling, offers great promise for…