基于喷射效应的太赫兹高分辨成像研究与进展

太赫兹(THz)成像技术，因其具有能量低、透射率高、波谱范围宽等独特的分析能力，已经在生物医学、安全检查、航空航天等领域展现出巨大的优势及潜在的应用价值，但是较低的空间分辨率制约了太赫兹成像技术的进一步应用。太赫兹波通过具有适当折射率的介质结构产生的“太喷射”效应调控亚波长尺寸太赫兹光场，突破衍射极限对显微系统空间分辨率的限制，同时不损失光场能量和光谱信息，实现高通量、超宽谱的远场太赫兹高分辨成像。本文首先介绍基于纳米喷射的微球透镜显微技术，接着介绍基于太喷射的太赫兹显微技术，最后对基于喷射效应的太赫兹高分辨成像技术的前景做了展望。

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关键词：

太赫兹成像; 太喷射; 分辨率

基金项目：

国家自然科学基金资助项目(11574408);国家重点研发计划(2017YFB00405400);国家民委“中青年英才”培养计划(2016-03-02);中央民族大学大学生创新性实验计划(URTP2019110002)

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引用本文：马晓茗, 姜在超, 屈庆山, 等. 基于喷射效应的太赫兹高分辨成像研究与进展[J]. 光电工程, 2020, 47(5): 190590.

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2020年第05期

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