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Quantum Tunneling in Graphene Advances the Age of Terahertz Wireless Communications

Quantum Tunneling in Graphene Advances the Age of Terahertz Wireless Communications
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Michael Dyakonov , Georgy Fedorov , Georgy Alymov , Denis Bandurin , Michael Shur , Dmitry Svintsov , Nature Communications , Russian Foundation For Basic Research , Moscow Pedagogical State University , Laboratory Of Nanocarbon Materials , University Of Manchester , Russian Science Foundation , Nanocarbon Materials , Russian Foundation , Basic Research , ஜார்ஜி ஃபெட்ரொவ் , மைக்கேல் ஶர் , இயற்கை தகவல்தொடர்புகள் , ரஷ்ய அடித்தளம் க்கு அடிப்படை ஆராய்ச்சி , பல்கலைக்கழகம் ஆஃப் மான்செஸ்டர் , ரஷ்ய அறிவியல் அடித்தளம் , ரஷ்ய அடித்தளம் , அடிப்படை ஆராய்ச்சி ,

Quantum tunneling in graphene advances the age of terahertz wireless communications

Credit: Daria Sokol/MIPT Press Office
Scientists from MIPT, Moscow Pedagogical State University and the University of Manchester have created a highly sensitive terahertz detector based on the effect of quantum-mechanical tunneling in graphene. The sensitivity of the device is already superior to commercially available analogs based on semiconductors and superconductors, which opens up prospects for applications of the graphene detector in wireless communications, security systems, radio astronomy, and medical diagnostics. The research results are published in a high-rank journal
Information transfer in wireless networks is based on transformation of a high-frequency continuous electromagnetic wave into a discrete sequence of bits. This technique is known as signal modulation. To transfer the bits faster, one has to increase the modulation frequency. However, this requires synchronous increase in carrier frequency. A common FM-radio transmits at frequencies of hundred meg ....

Michael Dyakonov , Georgy Fedorov , Georgy Alymov , Denis Bandurin , Michael Shur , Dmitry Svintsov , Nature Communications , Moscow Pedagogical State University , University Of Manchester , ஜார்ஜி ஃபெட்ரொவ் , மைக்கேல் ஶர் , இயற்கை தகவல்தொடர்புகள் , பல்கலைக்கழகம் ஆஃப் மான்செஸ்டர் ,