Off-Axis Diffractive Focusing Reflectors for Refractive Index Sensing in Microfluidic Devices
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概要
- 論文の詳細を見る
Microfluidic devices with off-axis diffractive focusing reflectors (DFRs) were fabricated for refractive index sensing in biological and chemical fields. Such devices can detect refractive index changes of dielectric liquid samples just above the DFRs by measuring the changes of diffracted power from the fluidic devices. The focusing reflectors consist of curved SiO2 lines with periods which gradually varied from 1.23 to 3.73 μm. When a probe laser with 632.8 nm wavelength was coupled to the DFRs at the off-axis angle of 20°, a focal spot of 3.5 μm was observed at the distance of 1000 μm from the lens surface, which was close to theoretical value.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2011-06-25
著者
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Hirata Yoshinori
Division Of Materials And Manufacturing Science Graduate School Of Engineering Osaka University
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Nishii Junji
Research Institute For Electronic Science Hokkaido University
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Okamoto Shintaro
Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0021, Japan
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Nishiyama Hiroaki
Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0021, Japan
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Sagawa Yu-ichi
Division of Manufacturing Science, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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Furukawa Norihiro
Division of Manufacturing Science, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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Nishii Junji
Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0021, Japan
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Hirata Yoshinori
Division of Manufacturing Science, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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- Off-Axis Diffractive Focusing Reflectors for Refractive Index Sensing in Microfluidic Devices