Propagation characteristics of high-throughput terajet beam and its super Resolution THz imaging
- Resource Type
- Conference
- Authors
- Yang, Zhichao; Qu, Qingshan; Yang, Menghan; Cui, Bin; Zhang, Zhenwei; Yang, Yuping
- Source
- 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2019 44th International Conference on. :1-2 Sep, 2019
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Dielectrics
Refractive index
Spatial resolution
Diffraction
Microscopy
- Language
- ISSN
- 2162-2035
Broad-bandwidth spectral analysis is one of important advantages of terahertz (THz) imaging technology, while low spatial resolution restricts its further applications. In contrast to the contradiction between the high-resolution and the low-throughput as well as narrow-bandwidth in the existing THz near-field imaging technologies, a high-resolution, high-throughput and broad-bandwidth terahertz imaging method is proposed in this work based on the terajet effect produced by a dielectric semi-sphere with appropriate refractive index. The terajet beam can break through the restriction of the diffraction limit on the spatial resolution of the microscopic system without losing the energy and spectral width.