Terahertz Wave Resonance Profiles in Micro Patterns of Dielectric Tablets Fabricated by Using Stereolithography of Structural Joining Process

Kirihara, Soshu; Hotta, Mikinori; Niki, Toshiki; Ohta, Noritoshi

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タイトル	Terahertz Wave Resonance Profiles in Micro Patterns of Dielectric Tablets Fabricated by Using Stereolithography of Structural Joining Process
著者	Kirihara, Soshu Kirihara, Soshu
	Hotta, Mikinori Hotta, Mikinori
	Niki, Toshiki Niki, Toshiki
	Ohta, Noritoshi Ohta, Noritoshi
キーワード等	Dielectric Micro Pattern
	Band Gap
	Micro-Stereolithography
	Terahertz Wave
抄録	Materials tectonics is new concept to control energy flows form environmental field to human beings through spatial patterns of ceramics or metals fabricated by using structural joinings. Recently, we have developed two dimensional micro patterns composed of dielectric ceramics in order to control terahertz waves effectively by using stereolithography. In this process, photosensitive resin pastes with titania particles dispersion were spread on a glass substrate with 10 μm in layer thickness by moving a knife edge, and two-dimensional images of ultra violet rays were exposed by using a digital micro-mirror device with 2 μm in part accuracy. Through the layer by layer stacking, periodic structures composed of micro polygon tablets were formed. Dielectric constant of these tablets was measured as 40. Subsequently, the electromagnetic wave properties of these samples were measured by using a terahertz spectroscopic device. In transmission spectra, forbidden bands were observed form 0.33 to 0.57 THz through electromagnetic wave diffractions. Moreover, a localized mode of a transmission peaks was formed in the band gap frequency range. Through transmission line modeling simulations at the peak frequency, electromagnetic energies were concentrated strongly into the thin micro patterns. The terahertz waves are well known to resonate with various types of protein molecules, and expected to control the biological material syntheses through the frequency excitements. Fabricated dielectric ceramic micro patterns are considered to be applied for the new types of reactors to create the useful materials as artificial interfaces between the electromagnetic energy and the biological materials.
公開者	大阪大学接合科学研究所
公開者の別表記	Joining and Welding Research Institute, Osaka University
公開者 (ヨミ)	オオサカダイガクセツゴウカガクケンキュウジョ
掲載誌名	Transactions of JWRI
巻	38
号	1
開始ページ	7
終了ページ	11
刊行年月	2009-09
ISSN	03874508
NCID	AA00867058
URL	http://hdl.handle.net/11094/7469
言語	英語
カテゴリ	紀要論文 Departmental Bulletin Paper
カテゴリ	Transactions of JWRI / Vol.38 No.1 (2009-09)

著者版フラグ	publisher
NII資源タイプ	紀要論文
ローカル資源タイプ	紀要論文
dcmi資源タイプ	text
DCTERMS.bibliographicCitation	Transactions of JWRI.38(1) P.7-P.11
DC.title	Terahertz Wave Resonance Profiles in Micro Patterns of Dielectric Tablets Fabricated by Using Stereolithography of Structural Joining Process
DC.creator	Kirihara, Soshu
	Hotta, Mikinori
	Niki, Toshiki
	Ohta, Noritoshi
DC.publisher	大阪大学接合科学研究所
DC.language" scheme="DCTERMS.RFC1766	英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF	2009-09
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/7469
DC.subject	Dielectric Micro Pattern
	Band Gap
	Micro-Stereolithography
	Terahertz Wave
DCTERMS.abstract	Materials tectonics is new concept to control energy flows form environmental field to human beings through spatial patterns of ceramics or metals fabricated by using structural joinings. Recently, we have developed two dimensional micro patterns composed of dielectric ceramics in order to control terahertz waves effectively by using stereolithography. In this process, photosensitive resin pastes with titania particles dispersion were spread on a glass substrate with 10 μm in layer thickness by moving a knife edge, and two-dimensional images of ultra violet rays were exposed by using a digital micro-mirror device with 2 μm in part accuracy. Through the layer by layer stacking, periodic structures composed of micro polygon tablets were formed. Dielectric constant of these tablets was measured as 40. Subsequently, the electromagnetic wave properties of these samples were measured by using a terahertz spectroscopic device. In transmission spectra, forbidden bands were observed form 0.33 to 0.57 THz through electromagnetic wave diffractions. Moreover, a localized mode of a transmission peaks was formed in the band gap frequency range. Through transmission line modeling simulations at the peak frequency, electromagnetic energies were concentrated strongly into the thin micro patterns. The terahertz waves are well known to resonate with various types of protein molecules, and expected to control the biological material syntheses through the frequency excitements. Fabricated dielectric ceramic micro patterns are considered to be applied for the new types of reactors to create the useful materials as artificial interfaces between the electromagnetic energy and the biological materials.
citation_title	Terahertz Wave Resonance Profiles in Micro Patterns of Dielectric Tablets Fabricated by Using Stereolithography of Structural Joining Process
citation_author	Kirihara, Soshu
	Hotta, Mikinori
	Niki, Toshiki
	Ohta, Noritoshi
citation_publisher	大阪大学接合科学研究所
citation_language	英語
citation_date	2009-09
citation_journal_title	Transactions of JWRI
citation_volume	38
citation_issue	1
citation_firstpage	7
citation_lastpage	11
citation_issn	03874508
citation_public_url	http://hdl.handle.net/11094/7469
citation_keywords	Dielectric Micro Pattern
	Band Gap
	Micro-Stereolithography
	Terahertz Wave

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