2012 Fiscal Year Final Research Report
Development of high-sensitivity and ultra-low volume infrared gasspectroscopy system for breath analysis
| Project/Area Number |
22360135
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Tohoku University |
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Principal Investigator |
MATSUURA Yuji 東北大学, 大学院・医工学研究科, 教授 (10241530)
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| Co-Investigator(Kenkyū-buntansha) |
KATAGIRI Takashi 東北大学, 大学院・工学研究科, 准教授 (90415125)
KINO Saiko 東北大学, 大学院・医工学研究科, 教育研究支援者 (30536082)
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| Project Period (FY) |
2010 – 2012
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| Keywords | センシング |
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| Research Abstract |
To detect minor components in breath, a spectroscopic measurement system using a quantum cascade laser and a hollow optical fiber was developed. By optimizing the optic system and signal processing method, quantitative measurement of ppm-order gas component was successfully demonstrated. Subsequently, to devlop a cavity-ring-down spectroscopy system having further high sensitivity, hollow optical waveguides with inner dielectric layers were fabricated. By forming multiple dielectric layers on the inside, the transmission losses are largely decreased compared to common hollow waveguides with a single dielectric layer.
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