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Scientists Develop a New Method to Control THz Radiation in Air Introduction to Terahertz Radiation (THz) Terahertz (THz) radiation, spanning frequencies from 0.1 to 10 THz, is integral to technologies such as imaging, sensing and spectroscopy. Despite decades of research on THz wave manipulation, precise control of their direction in air remains a challenge. A Breakthrough by the Research Team at Ecole Polytechnique (CNRS) A research team at Ecole Polytechnique (CNRS), part of Institute Polytechnique de Paris, has recently demonstrated the ability to steer laser-generated terahertz (THz) radiation in air using a novel technique known as "flying focus." Their findings, published in Physical Review Letters , could unlock new avenues for THz wave manipulation, potentially driving the development of innovative technologies. Aur é lien Houard and His Team's Research on THz Radiation 20 Years of Research on THz Radiation "My research group has spent almost 20 years study...