Presentation 2009-06-12
3-D FD-TD analysis of an optical near-field generated by a metallic thin-film for thermally assisted magnetic recording
Tatsuya KAISE, Kazunori HIRASAWA, Yasushi KANAI, Yutaka TANGE, Tadao OHTANI,
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Abstract(in English) Thermally assisted magnetic recording is one of the possible candidates that achieves the areal densities of 1terabit/inch^2. In the scheme, the recording layer is heated by the external, optical energy. The signal is recorded when the coercive force of recording layer is reduced, therefore, relatively small magnetic field is necessary to switch the medium. In this report, the optical near fields from the metallic, thin film have been obtained for various structures with and without the aperture by using the three-dimensional finite-difference time-domain (FD-TD) method. Finally, the head field and the near field energy distributions are compared and discussed if a proper thermal energy can be applied to the recording layer.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Thermally-assisted magnetic recording / Optical near-filed / Metallic thin film / 3-D FD-TD analysis
Paper # MR2009-10
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Committee MR
Conference Date 2009/6/4(1days)
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Registration To Magnetic Recording (MR)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) 3-D FD-TD analysis of an optical near-field generated by a metallic thin-film for thermally assisted magnetic recording
Sub Title (in English)
Keyword(1) Thermally-assisted magnetic recording
Keyword(2) Optical near-filed
Keyword(3) Metallic thin film
Keyword(4) 3-D FD-TD analysis
1st Author's Name Tatsuya KAISE
1st Author's Affiliation Niigata Institute of Technology()
2nd Author's Name Kazunori HIRASAWA
2nd Author's Affiliation Niigata Institute of Technology
3rd Author's Name Yasushi KANAI
3rd Author's Affiliation Niigata Institute of Technology
4th Author's Name Yutaka TANGE
4th Author's Affiliation Maizuru National College
5th Author's Name Tadao OHTANI
5th Author's Affiliation Mitsubishi Heavy Industries, Ltd.
Date 2009-06-12
Paper # MR2009-10
Volume (vol) vol.109
Number (no) 80
Page pp.pp.-
#Pages 7
Date of Issue