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Heat-assisted magnetic recording

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By using light to assist the recording process, hard disk drive capacity could potentially be increased by two orders of magnitude. The idea is to heat the magnetic medium locally, thus temporarily lowering its resistance to magnetic polarization.

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Figure 1: Schematic of perpendicular recording HDD and heat-assisted magnetic recording (HAMR) systems.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Liang Pan and David B. Bogy are at the Computer Mechanics Laboratory, University of California, 5146 Etcheverry Hall, Berkeley, California 94720, USA. lpan@berkeley.edu; dbogy@cml.me.berkeley.edu,

    Liang Pan & David B. Bogy

  2. dbogy@cml.me.berkeley.edu,

    Liang Pan & David B. Bogy

Authors
  1. Liang Pan
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  2. David B. Bogy
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Pan, L., Bogy, D. Heat-assisted magnetic recording. Nature Photon 3, 189–190 (2009). https://doi.org/10.1038/nphoton.2009.40

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