| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
I developed plasma evanescent spectroscopy, which measures emission from the plasma in the light wavelength region from the wall surface.
Specifically, I irradiated a prism surface made of fused quartz and its gold-deposited surface with an atmospheric pressure and low temperature helium plasma jet, and measured emission spectra with the internal total reflection geometry in the light wavelength range from 250 to 800 nm. As the results, it was suggested that emission intensities of excited nitrogen molecules and excited helium atoms in the vicinity of the surfaces largely increase. On the other hand, I developed a mathematical model to describe the relation between laser-induced evanescent fluorescence and the reflection of metastable atoms at the surface. I also developed a Doppler-free spectroscopic system with diode lasers and tried to observe laser-induced evanescent fluorescence, but the fluorescence has not been detected so far.
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