Terahertz Photonics: Science and Application

Dear Colleagues,

Terahertz radiation, generally defined in the frequency range of 0.1–10 THz, has attracted tremendous interest owing to it having potential applications in imaging and spectroscopy for medical diagnostics and biology, broadband communications, security, defense, and nondestructive testing. Interest in the THz range has recently increased due to the allocation of frequency bands in this region of the spectrum providing large amounts of available bandwidth for both the existing 5G and emerging 6G wireless communications standards. Access to these bands is key for next-generation wireless communications with terabit-per-second speeds. Furthermore, recent rapid advances in photonic integration technology into the THz field is crucial for compact and efficient chip-scale systems. This is further enabling THz systems to become versatile and programmable. This Special Issue will address the current progress and latest breakthroughs in emergent applications of THz photonics, covering, among others, the following areas of interest:

• THz emitters, CW and pulsed;
• THz photonic detectors and mixers;
• THz surface-structured plasmonics and metamaterials;
• Tunable THz devices;
• THz waveguides, fiber and photonic crystals;
• Signal processing techniques and enabling devices (phased arrays, high-Q resonators, modulators, filters, absorbers, etc.);
• Photonic-driven antenna arrays for THz beam forming and steering;
• THz applications such as radars, wireless and wired communications, non-destructive inspection and evaluation, space-based systems, and imaging systems;
• Terahertz biophotonics.

Dr. Mikhal K. Khodzitsky
Prof. Dr. Dmitri V. Lioubtchenko
Guest Editors

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