What is terahertz communication?

Terahertz (THz) transmission is a complementary wireless technology for communication networks, which allow high-speed wireless extension of the optical fibers for Beyond 5G.

Why is terahertz important?

Due to its special properties, terahertz radiation has become an important technology of the future: it can be used to detect concealed explosives or drugs and it can identify which substances are flowing through a plastic pipe.

Is 5G terahertz?

Summary: Researchers demonstrate wireless transmission of uncompressed full-resolution 8K video using terahertz waves, accelerating research and development of Beyond 5G towards 6G.

Could THz be used for indoor wireless communications?

Broad bandwidth of the THz frequency bands can be used for terabit-per-second (Tb/s) wireless indoor communication systems.

How is terahertz generated?

Terahertz signals can be generated via parametric interaction of near-infrared photons and optical vibration modes inside an optical crystal.

Where is terahertz used?

Terahertz radiation can penetrate fabrics and plastics, so it can be used in surveillance, such as security screening, to uncover concealed weapons on a person, remotely. This is of particular interest because many materials of interest have unique spectral “fingerprints” in the terahertz range.

What are the characteristics of terahertz?

The terahertz range refers to electromagnetic waves with frequencies between 100 GHz and 10 THz, or wavelengths between 3 mm and 30 μm. Light between radio waves and infrared has some unique properties. Terahertz can “look inside” plastics and textiles, paper and cardboard.

How is terahertz radiation produced?

THz radiation was generated by nonlinear mixing of two modes in a mid-infrared quantum cascade laser. Previous sources had required cryogenic cooling, which greatly limited their use in everyday applications.

Is terahertz magnetic?

We show that magnetic response at terahertz frequencies can be achieved in a planar structure composed of nonmagnetic conductive resonant elements. The effect is realized over a large bandwidth and can be tuned throughout the terahertz frequency regime by scaling the dimensions of the structure.

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