Terahertz spectroscopy of general-purpose plastics and application to nondestructive evaluation

2015 Fiscal Year Final Research Report

• Project/Area Number: 26600133
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: General applied physics
• Research Institution: Toyohashi University of Technology
• Principal Investigator: Ariyoshi Seiichiro 豊橋技術科学大学, 工学(系)研究科(研究院), 准教授 (20391849)
• Co-Investigator(Kenkyū-buntansha): HIROSHIBA Nobuya 東北大学, 多元物質科学研究所, 助教 (40635190)
• Co-Investigator(Renkei-kenkyūsha): BAE Jongsuck 名古屋工業大学, 大学院工学研究科, 教授 (20165525) ; ICHIKAWA Yo 名古屋工業大学, 大学院工学研究科, 教授 (10314072) ; SHIMIZU Hirohiko 名古屋大学, 大学院理学研究科, 教授 (50249900)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 物理計測・制御 / テラヘルツ分光 / 高分子材料

Outline of Final Research Achievements

Terahertz radiation, located in the electromagnetic spectrum between radio waves and visible light, is nonionizing in soft matter and its propagation is amenable to optical handling. We applied Fourier transform terahertz spectroscopy to an investigation of polypropylenes (PPs) with different crystallinities and tacticities. We also investigated polyethylene terephthalates (PETs) with different history of mechanical and thermal denaturation. Broadband THz spectroscopy offers a nondestructive, noninvasive inspection technique for general-purpose plastics.

Free Research Field

テラヘルツ工学、超伝導デバイス