| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
When a shock wave travels in a material ｍedium, it interacts with the material, giving an impulse of stress. Various phenomena are induced by shock waves. We have investigated some of those shockwave-induced phenomena to understand the mechanisms and to apply them for new materials. What we focused on was the shockwave-induced emission of light phenomena. We found an unpresidented shockwave-induced luminescence from a phospor powder (Ce:YAG), which is quite different from known luminescence such as photoluminescence. By investigating this unique shockwave phenomenon, we found that the shockwave propagation behavior of low-density powders are quite different from that of other general solid materials such as metals. We also found that this unusual luminescence is likely an electronic transition from a higher excited state, but it could also be luminescence from shockwave-generated defects of some kind. It may be applied for a new design method of luminescent materials.
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