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Multi-ridged subwavelength aperture for optical transmission and thermally assisted magnetic recording
Multi-ridged subwavelength aperture for optical transmission and thermally assisted magnetic recording
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机译:多脊亚波长孔径,用于光学传输和热辅助磁记录
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摘要
A subwavelength aperture includes a plurality of ridges that project from an aperture sidewall into the aperture opening. The ridges may be closely spaced such that the hot spots associated with the ridges are likewise closely spaced and create an elongated hot spot. The subwavelength aperture of the present invention may be adapted for use in a magnetic head of a hard disk drive for improved thermally assisted recording (TAR) of magnetic data bits. Such a magnetic head may include an optical resonant cavity that is fabricated within the magnetic head structure.
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