Source: Korea IT Times.

    POSTECH Professor Lee Hu-jong and his research team have announced on January 15, 2007 that they have succeeded in developing a technology to generate Terahertz (THz) waves by capitalizing on high temperature superconductors.

    The terahertz wave is a super high frequency wave lying between the ultraviolet ray and microwave, and makes it possible to take a picture of the living body image more safely than an X-ray. Moreover, this can be applied to fields such as deadly weapons, nondestructive inspection (NDI), and super high-speed wireless Internet. Because of this, developed countries are making efforts to develop the technology of generating the terahertz wave. Until now, however, either an electronic approach or an optical technique has not worked for terahertz wave generation. But by capitalizing on Josephson vortex, professor Lee and his research team has developed the technology of generating the terahertz wave.

    This research results have been disclosed in Physical Review Letters published by American Physics Society. Professor Lee said: ¡°We expect that our research results will make a contribution to stepping up the development of terahertz wave generation device, consequently providing a great help to the superconduction applications.¡±