テラヘルツ ドウサ デバイス カイハツ ニ ムケタ チョウ デンドウ フォトニクス ノ テンカイ テラヘルツ デバイス システム カイハツ ユニット ノ ケンキュウ カラ

GCOE特集大阪大学GCOEプログラム 「次世代電子デバイス教育研究開発拠点」拠点リーダー:谷口 研

チョウコウソク コウキノウ レーザー ナノ カコウ ソウチ ノ カイハツ ト シカヨウ ザイリョウ ノ カコウ

We proposed data recording on biological tissues and prostheses for personal identification. The data recording was performed by femtosecond laser processing with small thermal damage, a clear edge of recording point, and high data capacity. Because the biological tissues and the prostheses have unexpected movements and individual threedimensional shapes, the laser processing system was required to perform the recording with an adaptability and a high-throughput. The adaptability was implemented with a target surface detection system composed of an image sensor with a high-frame rate, a guide laser, and a piezoelectric transducer stage. The high-throughput was realized by parallel laser processing based on a computer-generated hologram displayed on a spatial light modulator. We demonstrate the data recording on dental prostheses. We also demonstrate parallel processing of glass using the holographic femtosecond laser processing

共鳴フェムト秒誘導ラマン分光法の開発と励起状態振動の研究

Tohoku University吉澤雅幸課

ホテツ ソウチ ニヨル コジン ニンショウ システム ニ カンスル ブンケンテキ コウサツ

In disasters such as hydraulic bore, earthquakes and fire, the oral structure including the dental prostheses can provide identifying information. Over the years, many different personal identification system of dental prostheses have been reported. This present study analyzes the published literature offering the description of the personal identification system of dental prostheses. Two databases, “PubMed” and “Japana Centra Revuo Medicina” were searched to retrieve research papers referred to the personal identification system of dental prostheses. Twenty four papers were selected from the database with the criteria, and they were reviewed. 　This literature search showed that the personal identifications in three kinds of dental prostheses: removable denture, crown and implant were reported; and more papers on removable dentures were extracted compared to the crown and implant, however there is no high quality paper indicating that the structured methods for personal identification of dental prostheses is effective. 　A new method and common write format for personal identification are required to improve the present problems, and our systems using fluorescent material and ultraviolet light and femtosecond pulse laser-oriented recording system would be effective