Sustainable terahertz sources

Upcoming start-up wants to revolutionise the generation and use of terahertz waves

2024/06/04 by

Terahertz waves have a wide range of potential applications: From materials testing to biomedical and security technology to telecommunications. The THzNanoVision project utilises innovative semiconductor technologies to develop compact terahertz sources. There is also a clear focus on sustainability and environmental compatibility.

As part of the THzNanoVision project, scientists at the Department of Electrical Engineering and Information Technology (etit) at TU Darmstadt are researching novel sources for the generation and utilisation of terahertz (THz) waves in order to create the basis for a cross-sectional technology in a wide range of applications in the long term. The core innovation is the patented semiconductor technologies with which biocompatible, inexpensive, powerful and easy-to-install THz sources can be developed.

THzNanoVision is an exciting project with great potential for future innovative applications.

Dr.-Ing. Ahid S. Hajo

Such THz sources can be used in a variety of ways in the field of non-destructive material testing, whether for testing tyres, composite materials or quality control of medicines and foodstuffs. Another area of application is large-scale security checks to identify dangerous objects, for example at airports.

In the long term, wireless, high-bit-rate data transmissions over short distances (the so-called last mile) are possible. The aim is to use the technology in places where broadband expansion with fibre optic networks is difficult. In the future, the technology will also form the basis for further applications in the area of 6G data transmission and subsequent generations.

Environmentally friendly solution

The Darmstadt scientists are also paying particular attention to biocompatibility and health compatibility: compared to conventional alternatives such as X-ray or ultraviolet technologies, terahertz waves are harmless. The sustainably orientated terahertz sources also use gallium nitride material, replacing problematic materials currently used on the market, such as rare indium and toxic arsenide.

Cooperation partners wanted

THzNanoVision is looking for co-operation partners who are interested in the further development of this innovative technology. We are also currently looking for industrial engineers or business economists to support the spin-off company.

Contact: Dr.-Ing. Ahid S. Hajo

A strong team

The team around the start-up currently consists of the inventor and know-how carrier Dr. Ahid S. Hajo, M.Sc. Deniz Cicek and M.Sc. Yunus Celik. THzNanoVision is also supported by two mentors, Prof. Dr. Sascha Preu and PD Dr.-Ing. habil. Oktay Yilmazoglu. The GaN-based wafers will be provided in collaboration with Prof Armin Dadgar from the University of Magdeburg. In addition, THzNanoVision is supported by a diverse group of advisors who are characterised by their experience and expertise in their respective fields.

Funding from the state of Hesse

THzNanoVision is supported by the Hessian Distr@l programme with around 700,000 euros over a period of 2 years The Distr@l funding programme is aimed in particular at small and medium-sized enterprises, start-ups, universities and research institutions that want to drive forward digitalisation in Hesse with their innovative project and significantly increase the level of digital technology.

About the person

Dr. Ahid S. Hajo heads the THzNanoVision project at Professor Sascha Preu's THz Devices and THz Systems Lab. As part of his doctorate in electrical engineering and information technology and his master's degree in physics, he worked in the field of terahertz and nanotechnology for new THz sources and detectors. His current research interests include nanowire-based THz Schottky detectors, GaN-based THz Gunn sources and CNT-based THz detectors and sources for non-destructive security, telecommunication and biomedical applications. He is author and co-author of more than 25 journal articles and published conference papers as well as patents.

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