Properties of Anti-Stokes Photoluminescence and Ideal Laser Cooling Performance in Yb-Doped Yttrium Aluminum Garnet Thin Film
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- NAKAYAMA Yuta
- Department of Electrical and Electronic Engineering, Graduate School of Engineering, Kobe University
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- NAKAGAWA Nozomu
- Department of Electrical and Electronic Engineering, Faculty of Engineering, Kobe University
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- HARADA Yukihiro
- Department of Electrical and Electronic Engineering, Graduate School of Engineering, Kobe University
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- KITA Takashi
- Department of Electrical and Electronic Engineering, Graduate School of Engineering, Kobe University Department of Electrical and Electronic Engineering, Faculty of Engineering, Kobe University
Bibliographic Information
- Other Title
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- イッテルビウム添加イットリウムアルミニウムガーネット薄膜のアンチストークス発光特性と理想レーザー冷却性能
- イッテルビウム テンカ イットリウムアルミニウムガーネット ハクマク ノ アンチストークス ハッコウ トクセイ ト リソウ レーザー レイキャク セイノウ
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Abstract
<p>We prepared Yb-doped yttrium aluminum oxide thin film on c-sapphire and fused-quartz substrates by a RF-magnetron sputtering technique for laser cooling application. The sputtered film on c-sapphire shows the high transparency, which is preferable for laser cooling application. The sputtering target of Yb-doped yttrium aluminum perovskite [(Yb:Y)AP] results in the eutectic phase of Yb-doped yttrium aluminum garnet [(Yb:Y)AG)] and Yb-doped yttrium aluminum monoclinic [(Yb:Y)AM)]. A PL spectrum of (Yb:Y)AG+(Yb:Y)AM/c-sapphire shows several strong, sharp peaks originated from the intra-orbital f-f transitions of Yb ions due to the weak reabsorption in the sputtered film. The ideal cooling efficiency of 1.5% in (Yb:Y)AG+(Yb:Y)AM/c-sapphire is comparable to that of a (Yb:Y)AG ceramics. These results suggest that the high laser cooling power is achievable in the sputtered film with high Yb-doping concentration.</p>
Journal
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- Journal of the Society of Materials Science, Japan
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Journal of the Society of Materials Science, Japan 69 (10), 727-732, 2020-10-15
The Society of Materials Science, Japan
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Details 詳細情報について
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- CRID
- 1391693801395137920
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- NII Article ID
- 130007927974
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- NII Book ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL BIB ID
- 030702907
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed