Special Issue "Graphene Based Devices for Terahertz Technology"

Dear colleagues,

Terahertz (THz) waves have attracted great attention in communication, medicine, product quality control, nondestructive testing, and homeland security applications owing to their special properties: transmissivity similar to radio wave, directivity similar to light wave, safety for humans (low energy as compared to X-rays), spectral response of many substances in the THz range, etc. Graphene, a single layer of carbon atomic honeycomb network crystal, shows unique electrical and optical properties such as high values of carrier mobility, high thermal conductivity, fast carrier relaxation, and light transparency (97.3%). In 2004, Novoselov et al. obtained and investigated the first monolayer graphene by mechanical exfoliation of bulk graphite. Since then, graphene-based devices have attracted great interest due to their potential use for different fields; in particular, graphene can have a strong interaction with photons, and different phenomena are involved, especially in the range of terahertz. Graphene-based electronic devices have shown efficient detection of terahertz radiation using different phenomena such as optical excitation of plasmons and thermoelectric effect. Emission of terahertz radiation has been theoretically predicted, and development of a graphene-based emitter intensively investigated. Hence, graphene is an excellent material for novel applications in the THz range to build devices such as THz sensors, emitters, and modulators. The aim of the present Special Issue is to present a broad vision of the current trends in graphene-based technologies that are investigated to develop different electronic devices for future terahertz applications.

Prof. Dr. Yahya M. Meziani
Prof. Dr. J. E. Velázquez-Pérez
Guest Editors

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• graphene
• terahertz
• detector
• terahertz imaging
• graphene-based field effect transistor
• terahertz laser
• terahertz modulator
• amplifier
• graphene-based devices
• terahertz technology using graphene