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Proceedings Paper

90° bent metallic waveguide with a tapered C-shaped aperture for use in HAMR
Author(s): J. Brian Leen; Eunhyoung Cho; Sung-Dong Suh; Paul C. Hansen; Jin-Seung Sohn; Sung-Hoon Choa; Lambertus Hesselink
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Paper Abstract

An efficient and compact method of introducing light into a magnetic recording head for use in Heat Assisted Magnetic Recording (HAMR) is proposed. The technique uses a polymer waveguide to source light into a novel metallic structure consisting of a sub-wavelength C-aperture waveguide with a 90° bend and a tapered section. The structure is modeled using Finite Difference Time Domain (FDTD) simulations and it is shown that the 90° bend allows for low loss near-field optical access into a conventional magnetic recording head while the tapered C-waveguide allows for maximum input coupling and a minimum spot size at the recording media.

Paper Details

Date Published: 11 July 2007
PDF: 6 pages
Proc. SPIE 6620, Optical Data Storage 2007, 66200R (11 July 2007); doi: 10.1117/12.738908
Show Author Affiliations
J. Brian Leen, Stanford Univ. (United States)
Eunhyoung Cho, Samsung Advanced Institute of Technology (South Korea)
Sung-Dong Suh, Samsung Advanced Institute of Technology (South Korea)
Paul C. Hansen, Stanford Univ. (United States)
Jin-Seung Sohn, Samsung Advanced Institute of Technology (South Korea)
Sung-Hoon Choa, Samsung Advanced Institute of Technology (South Korea)
Lambertus Hesselink, Stanford Univ. (United States)

Published in SPIE Proceedings Vol. 6620:
Optical Data Storage 2007

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