Terahertz Optics: Sciences, Technologies and Applications

Dear Colleagues,

Nowadays, with the rapid development, the terahertz (THz) band, once regarded as a gap between electronics and photonics, is also rapidly becoming a mature platform for precision spectroscopy, imaging, and ultrafast control. The advances in coherent sources (e.g., quantum cascade lasers and ultrafast laser driven emitters), low noise detection, metamaterial and near field wavefront engineering, and on-chip integration are redefining sensitivity, spatial resolution, and bandwidth across laboratory and deployable systems.

This Special Issue, titled “Terahertz Optics: Sciences, Technologies and Applications”, aims to chart a rigorous, globally relevant roadmap for THz science, technology, and application by assembling works that bridge ultrafast physics with programmable devices and real-world demonstrations.

We invite original research and comprehensive reviews on the following topics:

• Time and frequency domain spectroscopy;
• Carrier and excitonic dynamics in quantum and emergent materials;
• Active devices for modulation and beam shaping;
• Metasurfaces for light-field manipulation and dynamic control;
• Subwavelength imaging and tomography;
• Communications and joint sensing communications toward 6G;
• Non-destructive evaluation, security screening, biomedical diagnostics, and molecular analytics including pharmaceutical cocrystals;
• Signal processing, calibration, and standards.

Prof. Dr. Bing Jin
Prof. Dr. Yuping Zhang
Prof. Dr. Xianfang Yue
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Optics is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

• fundamental THz science and spectroscopy: strong-field THz phenomena and non-linear spectroscopy
• terahertz spectroscopy (e.g., TDS, TRTS, OPTP, TES)
• ultrafast dynamics in quantum materials and semiconductors advanced THz materials and devices: terahertz metasurfaces and metamaterials
• active devices for terahertz material modulation
• dynamic control and light field manipulation
• novel THz sources, detectors, and on-chip systems real-world THz applications: spectroscopy of complex materials (e.g., pharmaceutical cocrystals, biomolecules)
• non-destructive evaluation, security screening, and biomedical imaging
• THz applications in 6G/beyond-6G communications and sensing
• advanced signal processing and novel system integration