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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| 1.3194310.pdf | 1.06 MB | Adobe PDF | 見る/開く |
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| DCフィールド | 値 | 言語 |
|---|---|---|
| dc.contributor.author | Ueda, Jumpei | en |
| dc.contributor.author | Tanabe, Setsuhisa | en |
| dc.contributor.alternative | 上田, 純平 | ja |
| dc.date.accessioned | 2011-11-21T09:01:12Z | - |
| dc.date.available | 2011-11-21T09:01:12Z | - |
| dc.date.issued | 2009-08-17 | - |
| dc.identifier.issn | 00218979 | - |
| dc.identifier.uri | http://hdl.handle.net/2433/150457 | - |
| dc.description.abstract | In Ce3+–Yb3+ co-doped Y3Al5O12 (YAG) ceramics, possibility of quantum cutting mechanism converting one visible photon into two NIR photons with optimum quantum efficiency approaching 200% have been investigated. In this material, Yb3+ emissions due to the 2F5/2-2F7/2 in the range of 1 μm were observed upon the excitation of 5d level of Ce3+. In addition, excitation spectra of Yb3+ emission corresponded to that of Ce3+ emission completely. Lifetime of the 5d level of Ce3+ decreased with increasing Yb3+ content. These results indicate the energy transfer (ET) from the 5d levels of Ce3+ to the 5F5/2 level of Yb3+. In (Y0.945Ce0.005Yb0.05) 3Al5O12 sample, the directly measured quantum yield (QY) of Yb3+ emission upon the excitation of 5d level of Ce3+ was about 12% and lower than QY (96%) that estimated from the ET efficiency which was calculated with the measured lifetime of Ce3+. | en |
| dc.format.mimetype | application/pdf | - |
| dc.language.iso | eng | - |
| dc.publisher | American Institute of Physics | en |
| dc.rights | Copyright c 2009, American Institute of Physics | en |
| dc.title | Visible to near infrared conversion in Ce3+-Yb3+ Co-doped YAG ceramics | en |
| dc.type | journal article | - |
| dc.type.niitype | Journal Article | - |
| dc.identifier.jtitle | Journal of Applied Physics | en |
| dc.identifier.volume | 106 | - |
| dc.identifier.issue | 4 | - |
| dc.identifier.spage | 043101 | - |
| dc.relation.doi | 10.1063/1.3194310 | - |
| dc.textversion | publisher | - |
| dc.relation.url | http://jap.aip.org/resource/1/japiau/v106/i4/p043101_s1 | - |
| dcterms.accessRights | open access | - |
| 出現コレクション: | 学術雑誌掲載論文等 | |
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