IIT Delhi Develops Highly Efficient Terahertz Source for Future 6G Networks

Researchers at the Indian Institute of Technology Delhi have developed a device that emits powerful radiation at frequencies surpassing those used by existing 6G communication systems. Know details here 

IIT Delhi: A team of researchers at the Indian Institute of Technology (IIT) Delhi, under the leadership of Assistant Professor Rahul Mishra and Professor Samaresh Das from the Center for Applied Research in Electronics (CARE), in partnership with Professor Yang Hyunsoo from the National University of Singapore, have developed a groundbreaking device. This instrument is capable of generating high-intensity radiation at frequencies that surpass those utilised by present 6G communication technologies.

Ms Pinki Yadav, a research scholar at IIT Delhi, spearheaded the design and fabrication of this pioneering device, with critical measurements conducted at NUS. The culmination of this research was published in ACS Nano Letters, a prestigious journal by the American Chemical Society renowned for its focus on nanomaterials and devices. 

About Terahertz Source 

Dubbed a spintronic terahertz (THz) emitter, the device operates through a bilayer system composed of ferromagnetic and non-magnetic materials. The team at IIT Delhi innovated by developing a semimetal material in their laboratory using platinum, which was then paired with a layer of cobalt. This combination enables the device to generate high-intensity pulses at the terahertz frequency range, nearing 1012 Hz.

Professor Rahul said, "Existing sources for this frequency range face limitations such as narrow bandwidths, low emission strength, and the need for low-temperature operations. Our goal was to create an emitter that not only provides enhanced emission strength but also functions efficiently at room temperature, making it suitable for practical, real-time applications."

The implications of this THz technology are broad and significant, as highlighted by Professor Samaresh. He remarked, "Terahertz technology, with its high-frequency radiation emission capabilities, holds the potential to revolutionize various aspects of our daily lives. Its non-invasive nature is particularly advantageous for medical imaging, enabling doctors to visualize the interior of the human body safely, without the risks associated with conventional X-rays."

Research scholar Pinki Yadav, reflecting on communication applications, added, "In the realm of telecommunications, THz waves can facilitate faster and more secure wireless networks, significantly enhancing the speed and reliability of our internet connections."

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