Fabrication of semiconductor single-crystalline microspheres by laser ablation in superfluid helium
| Project/Area Number |
26610086
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Condensed matter physics I
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| Research Institution | Osaka University |
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Principal Investigator |
Ashida Masaaki 大阪大学, 基礎工学研究科, 教授 (60240818)
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| Co-Investigator(Kenkyū-buntansha) |
MINOWA Yosuke 大阪大学, 大学院基礎工学研究科, 助教 (50609691)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | レーザー加工 / レーザーアブレーション / 超流動ヘリウム / 微小光共振器 / 結晶成長 / レーザー発振 / 真球 |
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| Outline of Final Research Achievements |
We successfully for the first time fabricated semiconductor single-crystalline microspheres by laser ablation, where the surface of target materials are broken under the strong laser irradiation to obtain fine particles, in superfluid helium with extremely low temperature and low viscosity. This result is rather surprising, because it seems almost impossible to obtain single-crystalline microspheres of semiconductors which have their own crystal structures and tend to grow in their own shapes in normal conditions.
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Report
(3 results)
Research Products
(29 results)
