Wavelength-selective spin-current generator using infrared plasmonic metamaterials

Satoshi Ishii, Ken Ichi Uchida, Thang Duy Dao, Yoshiki Wada, Eiji Saitoh, Tadaaki Nagao

研究成果: Article査読

12 被引用数 (Scopus)

抄録

A subwavelength plasmonic absorber is an ideal platform for absorbing light locally at a desired wavelength. Here, we demonstrate wavelength-selective spin current generation by combining plasmonic absorbers with Pt/yttrium-iron-garnet spintronic devices. These devices are widely used for investigating spin-current phenomena, such as the spin Seebeck effect. At the resonance of the plasmonic absorber in the mid-infrared regime, enhanced spin-current signals are recorded. The observed light-induced spin current can be attributed to both the spin Seebeck effect and photo-spin-voltaic effect. Our results open new prospects for using plasmonic absorbers to bridge nanophotonics and spintronics in numbers of opto-spintronic applications.

本文言語English
論文番号106103
ジャーナルAPL Photonics
2
10
DOI
出版ステータスPublished - 2017 10月 1

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • コンピュータ ネットワークおよび通信

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