90° bent metallic waveguide with a tapered C-shaped aperture for use in HAMR

Eunhyoung Cho, J. Brian Leen, Sung Dong Suh, Paul C. Hansen, Jin Seung Sohn, Sung Hoon Choa, Lambertus Hesselink

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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 Caperture 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 Cwaveguide allows for maximum input coupling and a minimum spot size at the recording media.

Original languageEnglish
Title of host publicationOptical Data Storage, ODS 2007
PublisherOptical Society of America (OSA)
ISBN (Print)1557528403, 9781557528407
DOIs
StatePublished - 2007
EventOptical Data Storage, ODS 2007 - Portland, OR, United States
Duration: 20 May 200720 May 2007

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701

Conference

ConferenceOptical Data Storage, ODS 2007
Country/TerritoryUnited States
CityPortland, OR
Period20/05/0720/05/07

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