RESEARCH

Research Directions

THz Quantum Electromagnetics & Radiation Mechanisms

Terahertz Quantum Electromagnetics & New Radiation Mechanisms

We were the first in the world to propose a new mechanism of electromagnetic radiation generated by coupling free electrons with surface plasmon polaritons, and put forward the development direction of "Terahertz Quantum Electromagnetics". The team revealed the threshold-less Cherenkov radiation mechanism in graphene hyperbolic materials, and discovered new terahertz saturable-absorption materials such as MXene — with an absorption bandwidth of 12 THz, the widest known.

Surface plasmonCherenkov radiationhyperbolic materialsMXene absorption
  • First in the world to propose the new radiation mechanism
  • MXene absorption bandwidth of 12 THz — the widest known

THz Vacuum Electronics & High-Power Sources

Terahertz Vacuum Electronics & High-Power Radiation Sources

Using super-radiance and the anomalous Smith-Purcell effect, we develop miniaturized vacuum-electronic terahertz radiation sources, including high-power sources such as the 0.22 THz / 40 kW gyrotron — providing fully domestic core devices for terahertz imaging and spectroscopy systems.

gyrotronSmith-Purcell effecthyperradiationnational production
  • 0.22 THz / 40 kW gyrotron
  • Fully domestic core devices

THz Near-field Super-resolution Microscopy

Terahertz Near-Field Super-Resolution Imaging System

By combining our self-developed domestic high-power vacuum-electronic radiation source with atomic force microscopy, we built the world's first terahertz near-field microscopy system based on vacuum-electronic devices, achieving terahertz imaging and nanoscale spectroscopy at 20 nm resolution. Its key performance surpasses comparable foreign products, breaking the international monopoly. The system has been industrialized through Chengdu Miji Technology Co., Ltd.

Near field microscopyatomic force microscopynanospectroscopyindustrialization
  • World's first vacuum-electronics near-field system
  • 20 nm resolution · Breaking the international monopoly

THz Spectroscopy & Biomedical Applications

Terahertz Spectroscopy & Biomedical Applications

We apply terahertz spectroscopy and imaging to frontier biomedical research: achieving nano-scale identification of single bacteria and high-resolution imaging and spectroscopy of DNA. In collaboration with West China Hospital of Stomatology, we are developing terahertz early-caries detection and enamel demineralization analysis, pushing terahertz technology from the laboratory toward clinical diagnostics.

terahertz spectroscopybacterial nano-recognitionDNA imaging spectroscopyearly detection of caries
  • In collaboration with West China Hospital of Stomatology
  • Single-bacterium nano-scale identification

THz Non-destructive Testing & Cultural Heritage

Terahertz Non-Destructive Testing & Cultural Heritage Conservation

Addressing major national needs and cultural inheritance, we develop terahertz multimodal non-destructive testing: terahertz NDT of the Terracotta Army, analysis of Sanxingdui bronzes, and multimodal inspection of smoke-covered murals in the Kizil Grottoes of Xinjiang. Selected for Tencent's "Tanyuan Program 2024", our work provides brand-new technical means for cultural heritage conservation and archaeological research.

the Terracotta ArmySanxingduithe Kizil Grottoesmultimodal detection
  • Selected for Tencent's "Tanyuan Program 2024"