A5103227822- Terahertz technology and applications
- Plasmonic and Surface Plasmon Research
- Superconducting and THz Device Technology
- Microfluidic and Bio-sensing Technologies
- Semiconductor Quantum Structures and Devices
- Microfluidic and Capillary Electrophoresis Applications
- Quantum and electron transport phenomena
- Metamaterials and Metasurfaces Applications
- Electrical and Bioimpedance Tomography
- Radio Frequency Integrated Circuit Design
Beihang University
2022-2025
The emergence of terahertz (THz) nanoscale resonance metasurface devices represents an innovative method for modulating THz waves by utilizing the intense, high-frequency alternating electric field in radiation. However, compared to traditional modulation methods that employ electrical, optical, and other techniques, potential these still necessitates further exploration. In this work, we achieved beam-splitting field-induced nonlinear frequency shifting functions within a single...
Abstract Strong-field terahertz (THz)–matter interaction permits the investigation of nonequilibrium behaviors in nonperturbative zone. However, unavailability a high-field free-space THz source with high repetition rates, excellent beam quality, and stability hinders its development. In this work, we obtain nonlinear modulation dynamics “THz-nano” metasurface on silicon substrates using time-resolved strong-field THz-pump THz-probe (TPTP) thousand orders local field enhancement through...
Free-space strong-field terahertz (THz) electromagnetic pulses have emerged as a potent tool for non-equilibrium quantum state control. However, these applications predominantly rely on electric field components, with limited utilization of magnetic components. A traditional electro-optical sampling technique may encounter constraints due to the strength saturation effect when detecting THz pulses. Here we identified intense THz-induced Zeeman torque signals in CoFe and successfully detected...
Terahertz (THz) radar offers significant advantages, notably high-frequency and strong penetration ability, making it highly promising for applications in aerospace, non-destructive testing, other imaging scenarios. However, existing THz technologies face challenges large-scale target detection due to the complexity high costs of system, which limits their development commercial application. Here we establish a system based on one-dimensional photonic crystal structure-enhanced 4-inch...
Dynamic imaging of flowing cells, especially for flow cytometry, is great significance the research in medicine and biology. Compared to traditional optical methods, electrical impedance tomography (EIT) has advantages label-free low cost. It can determine not only shape size cells but also distribution its electric properties that cannot be obtained by other presenting a significant advance impedance-based detection method. However, scale EIT sensor limits single-cell imaging, which usually...