Light−Matter Interactions Enabled by THz Low-Dimensional Nanophotonic Structures

Dear Colleagues,

The emergence of nanophotonics has opened up exciting avenues for advancements in science and technology, particularly within the terahertz (THz) spectral domain. In this domain, electromagnetic wavelengths span from several tens of micrometers to the millimeter range. In recent years, THz technology has emerged as a frontier area, offering unprecedented opportunities for advancements in fields ranging from communication and imaging to sensing and spectroscopy. Traditional optical components and methods face challenges in focusing THz waves down to the sub-diffraction region, resulting in weak light−matter interactions at such scales. This limitation heavily impedes the development of THz micro- and nanodevices with high efficiency. Nanophotonic structures and effects have revolutionized light−matter interactions at the nanoscale, enabling the creation of a diverse range of THz functional devices with dimensions approaching the nanometer scale.

The forthcoming Special Issue on light−matter interactions enabled by THz low-dimensional nanophotonic structures promises to be an enlightening exploration into a diverse array of captivating topics within the realm of THz science and technology. This issue will serve as a comprehensive platform to delve into various aspects of THz wave generation, interactions between THz waves and matter, THz nonlinear optical effects, the fabrication and characterization of THz nanophotonic structures and materials, as well as the development of cutting-edge THz devices. By inviting contributions from leading groups in the field, we seek to provide a comprehensive overview of the current state-of-the-art in THz nanophotonics and its promising applications across various disciplines.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

1. THz characterization techniques at the nanoscale;
2. THz imaging and spectroscopy technologies;
3. THz nanophotonic structures and materials;
4. THz devices, including radiation sources, modulator, and detectors;
5. THz on-chip optoelectronic systems.

We look forward to receiving your contributions.

Dr. Min Hu
Dr. Tianwu Wang
Guest Editors

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• terahertz
• nanophotonics
• light–matter interactions
• low-dimensional structures
• near-field