Journal of Terahertz Science and Electronic Information Technology , Volume. 19, Issue 5, 784(2021)
Terahertz near-field imaging technology and its development
Because terahertz(THz) waves have the characteristics of low energy, strong penetration, and broad bandwidth, terahertz imaging technology has been widely used in many fields such as non-destructive testing, biomedicine, and safety testing. How to improve the resolution of terahertz imaging in practical applications is becoming more and more important. Terahertz near-field imaging technology can break through the diffraction limit and obtain high-quality images with submicron or even nanometer resolution, thus high-resolution THz imaging technologies based on near-field methods have been proposed and further applied. This article first describes the basic principles of terahertz near-field imaging; secondly, summarizes its progresses and enhancement methods; and finally prospect the future of terahertz near-field imaging.
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WANG Qianqian, CUI Bin, YANG Yuping. Terahertz near-field imaging technology and its development[J]. Journal of Terahertz Science and Electronic Information Technology , 2021, 19(5): 784
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Received: Jun. 29, 2021
Accepted: --
Published Online: Nov. 15, 2021
The Author Email: Bin CUI (cuibin.robert@163.com)