Advanced Terahertz Spectrum and Metamaterials for Biochemical Sensing and Detection

The terahertz (THz) wave spectrum (0.1-10 THz) is located in between microwaves and infrared radiation. Due to its nonionizing characteristics and its sensitivity to weak resonance interactions, THz waves offer new methods for the sensitive detection of substrate and opening new paths for distinguishing the various biochemical or organic molecules by their specific resonant spectrum. However, the traditional THz system requires that the concentration of the detected target is very high. it is a challenge to measure the trace sample or target in a liquid state in a reliable sensing. The appearance of metamaterials can not only achieve strong response to THz waves, but also generate local field enhancement effect, which can realize the sensing and detection of the trace biochemical substrate. It is a promising solutions for development and utilization of metamaterials sensor, obtaining widely concern and development rapidly.

This Research Topic aims to contribute to the design of all kinds of functional THz metamaterials to achieve the higher sensitivity sensing and detection for biochemical substrate, as well as obtaining THz fingerprint spectrum for the sensing target by THz time-domain system, and provide a clear understanding of resonant mechanisms of THz metamaterials, and the applications in the field of biochemical sensing and detection. In addition, research on how to promote high Q value and improve the sensitivity of THz metamaterial devices is very welcome.

We welcome Original Research, Review, Mini Review and Perspective articles on themes including, but not limited to:
• Novel development of THz wave spectrum technology
• Advanced THz wave sensing and detection in biochemical substrate
• THz metal-dielectric metamaterials for sensing and detection of biochemical substrate
• THz all-dielectric metamaterials for sensing and detection of biochemical substrate
• THz carbon-based metamaterials for sensing and detection of biochemical substrate
• THz two-dimensional metamaterials for biochemical sensing and detection

Keywords: Terahertz, Metamaterials, Sensing, Biochemical, Detection

Important note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.