Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Propagation Speed of Electromagnetic Waves

Propagation Speed of Electromagnetic Waves

Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Terahertz integrated sensing and mobile communications empowered by a 220-GHz-band portable device.

Nature communications·2025

Same author

Meta-encryptor with multi-dimensional security architecture for wireless communications.

Nature communications·2025

Same author

Programmable low-coherence wavefronts for enhanced localization.

Communications engineering·2025

Same author

Transfer learning enabled transformer-based generative adversarial networks for modeling and generating terahertz channels.

Communications engineering·2024

Same author

A frequency-agile retrodirective tag for large-scale sub-terahertz data backscattering.

Nature communications·2024

Same author

High-speed 0.22 THz communication system with 84 Gbps for real-time uncompressed 8K video transmission of live events.

Nature communications·2024

Same journal

Ultrahigh-speed micromachining of sapphire by enhancing laser absorption.

Communications engineering·2026

Same journal

Industry-Academia Interface: Exploring the growth of Additive Manufacturing as an industry with Laura Del Río Fernández.

Communications engineering·2026

Same journal

Operating smart grids by customizing large model agents.

Communications engineering·2026

Same journal

Photovoltaics for space applications.

Communications engineering·2026

Same journal

EdgeVolution: democratizing multi-objective neural architecture search and end-to-end deployment on microcontrollers.

Communications engineering·2026

Same journal

Ghost noise in single-fiber bidirectional transmission links and its suppression approaches.

Communications engineering·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Jun 28, 2026

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

Published on: August 30, 2012

Beam manipulation for terahertz communications.

Mingxiang Li¹, Josep M Jornet², Daniel M Mittleman³

¹Terahertz Wireless Communications (TWC) Laboratory, Shanghai Jiao Tong University, Shanghai, China.

Communications Engineering

|May 4, 2026

Summary

This summary is machine-generated.

Terahertz (THz) communications require dynamic beam manipulation for high-gain transmission due to signal loss. This study explores various THz beam manipulation techniques for next-generation wireless systems.

More Related Videos

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Published on: July 8, 2013

Related Experiment Videos

Last Updated: Jun 28, 2026

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

Published on: August 30, 2012

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Published on: July 8, 2013

Area of Science:

Wireless Communication
Electromagnetics
Optics

Background:

Terahertz (THz) frequency band (0.1–10 THz) offers vast spectrum for next-generation wireless systems.
High-gain directional transmission is crucial for THz communications to overcome limited transmit power and severe propagation losses.
Dynamic beam manipulation is essential for practical THz systems, enabling performance scaling through architectural innovation.

Purpose of the Study:

To provide a comprehensive overview of terahertz beam manipulation techniques.
To introduce diffraction theory as the fundamental propagation model for beam manipulation.
To present specific communication scenarios and experimental verifications of beam manipulation.

Main Methods:

Review of diffraction theory for beam propagation modeling.
Detailed analysis of beam manipulation techniques for various communication scenarios.
Experimental validation using lenses and metasurfaces for beam manipulation.

Main Results:

Demonstration of efficient beam manipulation across near-field and far-field conditions.
Experimental verification of three distinct beam manipulation cases using lenses and metasurfaces.
Highlighting the shift towards architecture-level innovation in THz communications.

Conclusions:

Dynamic beam manipulation is a key enabler for practical terahertz communications.
Lenses and metasurfaces are effective tools for experimental verification of beam manipulation.
Reconfigurable intelligent surfaces offer alternative approaches for future THz beam manipulation.