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    Terahertz radiation tagged posts

    Invention could make Particle Accelerators 10 times Smaller

    September 29, 2020, Categories  Physics

    Terahertz acclerator structure
    SLAC scientists have invented a copper accelerator structure that could make future X-ray lasers and accelerators for radiation therapy more compact. It feeds terahertz radiation into a tiny cavity to boost particles to tremendous energies. This image shows one half of the structure with the cavity in the circled area. Inset: Scanning electron microscope image of a section of the cavity, which is 3.5 millimeters long and 280 microns wide at its narrowest point. (Chris Pearson/Emilio Nanni/SLAC National Accelerator Laboratory)

    It uses terahertz radiation to power a miniscule copper accelerator structure...

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    Tiny Terahertz Laser could be used for Imaging, Chemical detection

    August 9, 2017, Categories  Physics, Technology/Electronics

    Tiny terahertz laser could be used for imaging, chemical detection

    Tiny terahertz laser could be used for imaging, chemical detection A new technique boosts the power output of tiny, chip-mounted terahertz lasers by 88 percent. Credit: Demin Liu/Molgraphics

    Terahertz radiation—the band of the electromagnetic spectrum between microwaves and visible light—has promising applications in medical and industrial imaging and chemical detection, among other uses. But many of those applications depend on small, power-efficient sources of terahertz rays, and the standard method for producing them involves a bulky, power-hungry, tabletop device. For over 20 years, Prof. Qing Hu at MIT, and his group have been working on sources of terahertz radiation that can be etched onto microchips...

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