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Directional control of spin-wave emission by spatially shaped light
http://hdl.handle.net/2261/00072838
http://hdl.handle.net/2261/00072838d07a28f8-2804-40c8-93aa-88a3642608b4
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
10.1038-nphoton.2012.218.pdf (714.9 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2017-10-13 | |||||
| タイトル | ||||||
| タイトル | Directional control of spin-wave emission by spatially shaped light | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | journal article | |||||
| 著者 |
Satoh, Takuya
× Satoh, Takuya× Terui, Yuki× Moriya, Rai× Ivanov, Boris A.× Ando, Kazuya× Saitoh, Eiji× Shimura, Tsutomu× Kuroda, Kazuo |
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| 著者所属 | ||||||
| 著者所属 | Institute of Industrial Science, The University of Tokyo | |||||
| 著者所属 | ||||||
| 著者所属 | PRESTO, Japan Science and Technology Agency | |||||
| 著者所属 | ||||||
| 著者所属 | Institute of Magnetism, NASU | |||||
| 著者所属 | ||||||
| 著者所属 | Institute for Materials Research, Tohoku University | |||||
| 著者所属 | ||||||
| 著者所属 | CREST, Japan Science and Technology Agency | |||||
| 著者所属 | ||||||
| 著者所属 | The Advanced Science Research Center, Japan Atomic Agency | |||||
| 著者所属 | ||||||
| 著者所属 | WPI-Advanced Institute for Materials Research, Tohoku University | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In future spintronics it is anticipated that spin waves will function as unique information carriers that are free from Joule heating1–7. Directional control of spinwave emission has been desired for the realization of switching devices. Here, we propose a promising technique that makes use of a spatially shaped light pulse with circular polarization. Focusing this light pulse on a magnet generates spin waves via the inverse Faraday effect. Moreover, the wavenumber distribution of the spin waves is determined by the spatial intensity distribution of the light spot. We demonstrate the principle of this technique both theoretically and experimentally. We successfully control the direction of the energy flow by shaping the light spot into an ellipse, with its major axis parallel or perpendicular to the magnetic field. Our findings will open up the possibility of fast and arbitrary synthesis of spin-wave patterns by using a more sophisticated light-shaping technique, for example using a computer-generated hologram8. | |||||
| 書誌情報 |
Nature Photonics 巻 6, p. 662-666, 発行日 2012-09-09 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1749-4893 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA12300925 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | info:doi/10.1038/nphoton.2012.218 | |||||
| 著者版フラグ | ||||||
| 値 | author | |||||
| 出版者 | ||||||
| 出版者 | Nature Publishing Group | |||||
