A5019211465- Metamaterials and Metasurfaces Applications
- Plasmonic and Surface Plasmon Research
- Terahertz technology and applications
- Photonic Crystals and Applications
- Photonic and Optical Devices
- Superconducting and THz Device Technology
- Optical Wireless Communication Technologies
- Advanced Photonic Communication Systems
Xiamen University of Technology
2024-2025
Xiamen University
2020-2025
We propose and numerically demonstrate high Q-factor sensors based on all-dielectric metasurfaces, which are very sensitive to the change of refractive index surrounding media incident angle. By using light angular scanning method, metasurface symmetric tetramer can act as an excellent sensing platform for trace-amount molecules such protein A/G, 2, 4-DNT, 2D material graphene with huge absorbance enhancement in mid-infrared broadband spectrums. The results reveal that envelope amplitudes is...
The narrowband meta-absorbers exhibit significantly enhanced electromagnetic confinement capabilities, showcasing broad application prospects in sensing fields. They can be applied for biomarker detection, chemical composition analysis, and monitoring of specific gas the environment. In this work, we propose a 3D meta-absorber with an out-of-plane plasma mechanism based on two-photon printing system. Compared to conventional fabrication metal-insulator-metal 2D meta-absorber, absorber is...
We numerically demonstrate a switchable broadband terahertz spatial modulator composed of ginkgo-leaf-patterned graphene and transition material vanadium dioxide (VO 2 ). The phase property VO is used to switch the from absorption mode transmission mode, behaves as dynamically adjustable for large scale transmittance modulation. When in metallic state Fermi energy set 0.8 eV, proposed absorber with absorbance over 85% 1.33 2.83 THz. By adjusting level 0 peak can be continuously tuned 24.3%...
Optical biosensors are the devices converting biological signals into light for quantitative and classification detection. In recent years, metasurfaces combined with terahertz (THz) time-domain spectroscopy have been applied in various biosensing field, such as medical sensing food monitoring. However, current meta-sensors face problems of complex structures insufficient sensitivity, target molecules categories limited. Therefore, we proposed a meta-sensor both reliable fabrication, simple...