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Wireless connectivity in airplanes is becoming more important, demanded, and common. One of the largest bottlenecks with the in-flight Internet is that the airplane is far away from both the satellites and the ground base stations during…

Signal Processing · Electrical Eng. & Systems 2020-09-30 J. Kokkoniemi , J. M. Jornet , V. Petrov , E. Koucheryavy , M. Juntti

TeraHertz (THz) communications are envisioned as a promising technology, owing to its unprecedented multi-GHz bandwidth. One fundamental challenge when moving to new spectrum is to understand the science of radio propagation and develop an…

Information Theory · Computer Science 2021-02-01 Yi Chen , Yuanbo Li , Chong Han , Ziming Yu , Guangjian Wang

Taming the Terahertz waves (100 GHz-10 THz) is considered the next frontier in wireless communications. While components for the ultra-high bandwidth Terahertz wireless communications were in rapid development over the past several years,…

Applied Physics · Physics 2017-12-14 Kathirvel Nallappan , Hichem Guerboukha , Chahé Nerguizian , Maksim Skorobogatiy

Silicon-organic hybrid integrated devices have emerging applications ranging from high-speed optical interconnects to photonic electromagnetic-field sensors. Silicon slot photonic crystal waveguides (PCWs) filled with electro-optic (EO)…

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.…

A novel broadband technique to effectively launch plasmons along a single graphene layer at terahertz (THz) frequencies is proposed. To this end, the coupling of the electromagnetic wave from a readily available plasmonic waveguide…

Optics · Physics 2014-04-08 Mohammad Ali Khorrami , Samir El-Ghazaly

The ability to manipulate the electric-field vector of broadband terahertz waves is essential for applications of terahertz technologies in many areas, and can open up new possibilities for nonlinear terahertz spectroscopy and coherent…

High-performance optical beam splitters are of fundamental importance for the development of advanced silicon photonics integrated circuits. However, due to the high refractive index contrast of the silicon-on-insulator platform, state of…

Multimode interference couplers are a fundamental building block in many integrated photonic systems, ranging from high-speed coherent receivers to quantum splitters. However, their basic structure has remained fundamentally unchanged for…

Topological Insulator-based devices can transport electrons/photons at the surfaces of materials without any back reflections, even in the presence of obstacles. Topological properties have recently been studied using non-reciprocal…

Optics · Physics 2016-11-03 Babak Bahari , Ricardo Tellez-Limon , Boubacar Kanté

Recent advances in topologically robust waveguiding for electromagnetic systems have presented opportunities for improving practical photonic and microwave devices. To bring this rich area of physics within the reach of application, it is…

Applied Physics · Physics 2021-04-07 Robert J. Davis , Dia'aaldin J. Bisharat , Daniel F. Sievenpiper

The terahertz spectral regime, ranging from about 0.1 to 15 THz, is one of the least explored yet most technologically transformative spectral regions. One current challenge is to develop efficient and compact terahertz emitters/detectors…

Mesoscale and Nanoscale Physics · Physics 2019-03-12 Liang Luo , Ioannis Chatzakis , Jigang Wang , Fabian B. P. Niesler , Martin Wegener , Thomas Koschny , Costas M. Soukoulis

To address the increasing demand for ultra-high-capacity wireless communication, terahertz (THz) frequencies near 300 GHz are attracting attention as a new spectral frontier. This work presents the first experimental demonstration of…

Terahertz communication is emerging as a future technology to support Terabits per second link with highlighting features as high throughput and negligible latency. However, the unique features of the Terahertz band such as high path loss,…

Networking and Internet Architecture · Computer Science 2020-07-17 Saim Ghafoor , Noureddine Boujnah , Mubashir Husain Rehmani , Alan Davy

The ability to exploit the on-chip nonlinear generation of new frequencies has opened the door to a plethora of applications in fundamental and applied physics. Excitation of dispersive waves is a particularly interesting process that…

The computing speeds in modern multi-core processors and big data servers are no longer limited by the on-chip transistor density that doubles every two years following the Moores law, but are limited by the on-chip data communication…

THz radiation is more and more commonplace in research laboratories as well as in everyday life, with applications ranging from body scanners at airport security to short range wireless communications. In the optical domain, waveguides and…

Optics · Physics 2018-05-07 Alessio Stefani , Simon C. Fleming , Boris T. Kuhlmey

Dielectric rod antennas are promising candidates to be used in millimeter wave band wireless communications. The optimization of a patch-fed dielectric rod antenna design at millimeter wave band is presented in this work. This design is…

Applied Physics · Physics 2018-05-17 Nancy Ghattas , Atef M. Ghuniem , Sherif M. Abuelenin

A novel digital reconfigurable 2_bit metamaterial, equipped with a substrate integrated feeding system, is designed for industrial quality control applications within the terahertz frequency range. The proposed feeding mechanism facilitates…

Optics · Physics 2024-07-11 Eistiak Ahamed , Rasool Keshavarz , Negin Shariati

Modern communication and sensing technologies rely on connecting the optical domain with the microwave domain. Terahertz technologies, spanning increased frequencies from 100 GHz to 10 THz, are critical for providing larger bandwidths and…

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