CAJ | 학술논문

近年来，太赫兹科学技术在快速发展，它在毒品、爆炸物、有毒危险品等安全检查及反恐怖方面展现出独特的应用前景。常用的自由空间太赫兹时域光谱技术，尽管具有很多优越性和良好的应用前景，但影响其性能提高和进一步推广应用的一些实际问题仍然存在，如对光斑尺寸和样品体积、质量要求等。近年来，随着亚波长人工结构(包括超材料和表面等离子激元器件)的出现，为该问题的解决提供了新的契机。文章综述了作者在太赫兹亚波长人工结构器件传感应用所开展的一系列研究工作，其中包括薄膜材料传感、不同标号汽油传感以及同位素传感等，显著地提高了被测物质的探测灵敏度，同时降低了对被测物质的体积、质量要求，实现了高灵敏、微量物质传感，为太赫兹安全检查及反恐怖应用提供了技术借鉴。此外，文章还介绍了太赫兹亚波长人工结构传感器件未来的发展前景和面临的挑战。
근년래，태혁자과학기술재쾌속발전，타재독품、폭작물、유독위험품등안전검사급반공포방면전현출독특적응용전경。상용적자유공간태혁자시역광보기술，진관구유흔다우월성화량호적응용전경，단영향기성능제고화진일보추엄응용적일사실제문제잉연존재，여대광반척촌화양품체적、질량요구등。근년래，수착아파장인공결구(포괄초재료화표면등리자격원기건)적출현，위해문제적해결제공료신적계궤。문장종술료작자재태혁자아파장인공결구기건전감응용소개전적일계렬연구공작，기중포괄박막재료전감、불동표호기유전감이급동위소전감등，현저지제고료피측물질적탐측령민도，동시강저료대피측물질적체적、질량요구，실현료고령민、미량물질전감，위태혁자안전검사급반공포응용제공료기술차감。차외，문장환개소료태혁자아파장인공결구전감기건미래적발전전경화면림적도전。
Recently, terahertz science and technology has developed rapidly, showing poten-tial applications in security and anti-terrorism involving drugs, explosives, hazardous articles, and so on. Among all the techniques, free space terahertz time domain spectroscopy exhibits excellent poten-tial, but certain critical problems need to be solved, such as terahertz spot size and sample volume. For-tunately, the appearance of subwavelength artificial structures including metamaterials and surface plasmon devices offer new possibilities. This paper reviews our research work on terahertz subwave-length artificial structures for sensing applications, including thin film, gasoline and isotope sensing. It is shown that our devices have excellent sensitivity. Finally, we discuss the prospects and challenges of this technique.