3.8 Proceedings Paper

Light-induced Thermomagnetic Recording of Ferromagnetic Thin-film on Silicon Waveguide for Solid-State Magneto-Optical Memory

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IEEE

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Funding

  1. New Energy and Industrial Technology Development Organization (NEDO) [JPNP13004, JPNP16007]
  2. JST Core Research for Evolutional Science and Technology (CREST) [JPMJCR15N6, JPMJCR18T4]
  3. JSPS KAKENHI [19H02190, 20J11225]

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We demonstrate the light-induced thermomagnetic recording of a ferromagnetic thin-film CoFeB placed on a silicon waveguide for the first time, where magnetization reversal is observed when light propagates in the waveguide and heats up the thin-film magnet.
We firstly demonstrate light-induced thermomagnetic recording of a ferromagnetic thin-film CoFeB placed on a silicon waveguide. The magnetization reversal is observed when light propagates in the waveguide and evanescently heats up the thin-film magnet.

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