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MODERN RADIO-ELECTRONIC SYSTEMS IN THE TERAHERTZ RANGE
Ibragimov D.B.
PhD student at TUIT named after
Muhammad al-Khwarizmi, Ibra-doniyor@mail.ru
https://doi.org/10.5281/zenodo.15755001
Introduction.
In the ever-evolving landscape of technology, the terahertz band (THz) has emerged as a
powerful and versatile frontier, unlocking a myriad of opportunities across diverse sectors.
Terahertz technology, once a lesser-known part of the electromagnetic spectrum, is now
stepping into the spotlight, driving innovation and revolutionizing industries worldwide. This
article delves into the remarkable role of terahertz technology in our contemporary world.
Radio-electronic systems operating in the terahertz range (THz) are of significant
interest due to their potential for various applications. The terahertz range, typically defined
from 0.1 to 10 THz, offers unique advantages, including the ability to penetrate various
materials, high-resolution imaging, and the potential for high data rates in communication
systems. Here are some of the modern radio-electronic systems and their applications in the
terahertz range:
1. Terahertz Imaging Systems (Pic.1.):
- Security Screening: Terahertz imaging systems are used for security applications, such
as detecting concealed weapons or explosives on individuals.
- Medical Imaging: Terahertz imaging can be used for medical applications, such as
detecting skin cancer or imaging dental structures.
- Non-Destructive Testing: In industrial settings, terahertz imaging can be employed for
inspecting materials and products without damaging them.
Pic.1. Expected future applications of the THz-imaging system. λ: Optical wavelength.
2. Terahertz Communication Systems (Pic.2.):
- Wireless Data Transfer: Terahertz frequencies can potentially support extremely high
data rates in wireless communication systems. This makes them suitable for future wireless
networks and data transfer applications.
- Short-Range Communications: Terahertz waves can be used for high-bandwidth, short-
range communication within data centers and for device-to-device communication.
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Pic.2. On Terahertz (THz) Band for Wireless Communication
3. Terahertz Spectroscopy:
Material Characterization: Terahertz spectroscopy is used to study the chemical
composition and material properties of substances. It's valuable in fields like chemistry,
pharmaceuticals, and materials science.
- Astronomy: Terahertz spectroscopy is used in astronomical observations to study
molecular and atomic lines in space.
4. Terahertz Radar and Sensing (pic.3):
- Obstacle Detection: Terahertz radar systems can be used for detecting obstacles in low-
visibility conditions, such as in automotive safety applications.
- Environmental Sensing: Terahertz radar and sensing can be used for environmental
monitoring and climate studies.
Pic.3. Terahertz Radar and Sensing
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5. Terahertz Sensing for Industrial Processes:
- Quality Control: Terahertz sensors are used in industrial processes to monitor the
quality and integrity of products, including pharmaceuticals and food items.
- Process Control: Terahertz sensors are employed in manufacturing processes, where
they can provide real-time feedback for process optimization.
6. Terahertz Astronomy:
- Terahertz frequencies are used in astronomy for studying the composition and
physical properties of celestial objects, including planets, stars, and galaxies.
7. Terahertz Sources and Detectors(Pic.4.):
- Research in terahertz sources, such as quantum cascade lasers (QCLs) and terahertz
photomixers, as well as terahertz detectors, has advanced, enabling the development of more
practical and efficient terahertz systems.
Pic.4. Schematic for the terahertz emitter.
The incoming optical pulse excites electrons in the gold strips and creates a vertically
polarized terahertz pulse that propagates out the other side of the LT GaAs wafer. The hyper-
hemispherical lens helps collimate the terahertz pulse Detection.
It's worth noting that the terahertz range also presents challenges, including the need
for advanced materials, efficient sources, and detectors. Additionally, there are safety and
privacy concerns due to the ability of terahertz waves to penetrate clothing and some
materials. Nonetheless, research and development in terahertz technology continue to expand
the capabilities and applications of radio-electronic systems in the terahertz range.
The Future of Terahertz Technology:
Terahertz technology today is at the cusp of revolutionizing industries and the way we
live, work, and communicate. The ongoing research and development in this field are
expected to bring about transformative changes, with a potential impact on healthcare,
telecommunications, security, and manufacturing.
In conclusion, the terahertz band, once considered a gap in our understanding of the
electromagnetic spectrum, has emerged as a dynamic frontier with vast applications and
implications for our increasingly interconnected world. As research and development efforts
continue, the terahertz band promises to unlock new opportunities and contribute to
advancements in various fields, making it a fascinating and valuable area of study in the realm
of science and technology.
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In a world driven by technological advancements, the role of terahertz technology is
both significant and transformative. From medical diagnostics to communication systems,
security to materials research, this technology has proven its worth in diverse sectors. As we
look ahead, we anticipate even greater strides and innovations in terahertz technology,
solidifying its place as a crucial component of our modern world.
References:
Используемая литература:
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Gintaras Valušis, Alvydas Lisauskas, Hui Yuan, Wojciech Knap, Hartmut G. Roadmap of
https://doi.org/10.3390/s21124092
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Б.Н. Рахимов, А.А. Бердиев, Д.Б. Ибрагимов., «Протоколы защиты безопасности для
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