2013 Fiscal Year Final Research Report
Improvement of Cr:Nd:YAG ceramics for solar pumped laser
| Project/Area Number |
23560037
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Applied optics/Quantum optical engineering
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| Research Institution | University of Fukui |
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Principal Investigator |
KANABE Tadashi 福井大学, 工学(系)研究科(研究院), 教授 (10201427)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 太陽光レーザー / 固体レーザー / Nd:YAGレーザー / Cr:Nd:YAGセラミック / 宇宙太陽光レーザー / 太陽光励起レーザー / 光エネルギー伝送 / 宇宙太陽光発電 |
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| Research Abstract |
Space Solar Power Systems (SSPS) is the energy supply plants which collect solar energy and to ground by converting into the laser. This system needs broad absorption spectrum which can absorb solar energy efficiently. It excels in the heat durability. It is enlargeable. Penetration in the atmosphere of the oscillating laser is good. There is Cr/Nd:YAG ceramic in the medium that meets these requirements. The Cr/Nd:YAG ceramic can achieve the laser efficiency 20%. However, since there is luminescence by Cr when changing, a changes loss arises. It was investigated how much it would change this time.Nd,Cr-codoped transparent YAG ceramics with excellent optical properties were fabricated.
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