Handbook of Terahertz Technologies Devices and Applications

Terahertz waves, which lie in the frequency range of 0.1?10 THz, have long been investigated in a few limited fields, such as astronomy, because of a lack of devices for their generation and detection. Several technical breakthroughs made over the last couple of decades now allow us to radiate and detect terahertz waves more easily, which has triggered the search for new uses of terahertz waves in many fields, such as bioscience, security, and information and communications technology.

The book covers some of the technical breakthroughs in terms of device technologies. It discusses not only the theoretical details and typical features of the technology described, but also some issues and challenges related to it. In addition, it is shown what can actually be done with the terahertz-wave technologies by introducing several successful demonstrations, such as wireless communications, industrial uses, remote sensing, chemical analysis, and 2D/3D imaging.

Photoconductive antennas. Nonlinear crystals. Quantum cascade lasers. THz diodes. THz transistors. Resonant tunneling diodes. Vacuum electronics. Plasma-wave devices. Metamaterials. Plastic fibers. THz information and signal processing. Low-coherent THz signals. Cameras. Chemical spectroscopy. Industrial applications. Wireless communications. Remote-sensing. 3D tomography system.

Ho-Jin Song is a research scientist in Nippon Telegraph and Telephone Corporation (NTT), Atsugi, Kanagawa, Japan. He received his PhD in information and communications engineering from Gwangju Institute of Science and Technology (GIST), Korea, in 2005. Since joining NTT in 2006, he has participated in several research programs on terahertz communications, sensing, imaging, and measurement system using photonic technologies and high-speed electronics.

Tadao Nagatsuma is a professor at Osaka University, Japan. He received his PhD in electronic engineering from Kyushu University, Fukuoka, Japan, in 1986. He was with NTT from 1986 to 2007. His research interests include millimeter wave and terahertz photonics and their application to sensors and wireless communications.