太赫兹科学与电子信息学报2025，Vol.23Issue(6)：569-576,8.DOI:10.11805/TKYDA2024594
基于太赫兹干涉成像系统的设计与研究
Design and research of terahertz interferometric imaging system
摘要
Abstract
Interferometric imaging technology can accurately measure the tiny deformations or displacements on the surface of objects in a non-contact manner,demonstrating extensive application potential.In this paper,a reflection and transmission interferometric system based on the terahertz band is designed and constructed.This system directly reconstructs images using phase information after scanning.Experiments show that at frequencies of 164 GHz,172 GHz,196 GHz,and 204 GHz,the imaging quality and resolution of the Michelson interferometric system are superior to those of the direct measurement method.At 150 GHz,without using any imaging algorithm,the system can achieve half-wavelength resolution,with a contrast improvement of 50%compared to direct measurement.At 180 GHz,a Mach-Zehnder interferometric system is implemented,where the dual-path difference effectively reduces phase noise,thus proving the feasibility and advantages of the system.Terahertz interferometric technology provides a noncontact,high-resolution imaging solution for the imaging field.关键词
太赫兹成像/迈克尔逊干涉/马赫-曾德尔干涉/分辨力Key words
terahertz imaging/Michelson interference/Mach-Zehnder interference/resolution分类
信息技术与安全科学引用本文复制引用
周心悦,郭莹,祁峰,王冠文..基于太赫兹干涉成像系统的设计与研究[J].太赫兹科学与电子信息学报,2025,23(6):569-576,8.基金项目
国家重点研发计划资助项目(2023YFF0718303) （2023YFF0718303）
雄安新区科技创新专项资助项目(2022XAGG0181) （2022XAGG0181）
