2009
DOI: 10.3379/msjmag.0908mc0003
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Optical TAMR Head Design for Placing a Heating Spot Close to a Magnetic Pole

Abstract: We propose a new configuration for an optical thermally assisted magnetic recording (TAMR) head. The configuration allows us to place an optical near-field spot close to a magnetic write pole. In this system, we use a Focusing Waveguide integrated into a flying slider and a metal plasmon antenna attached to the bottom surface of the waveguide. With the proposed configuration, the intensity of the optical near-field spot peaks when the optical near-field spot is placed at the clad of the Focusing Waveguide. As … Show more

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Cited by 3 publications
(2 citation statements)
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“…This is achieved by several approaches including: 1) making the structure resonant at a particular wavelength; 2) utilizing the "lightning rod" effect, which essentially relies on the fact that the electric field concentrates along the sharp tips or notches in the geometric design; and 3) by efficient use of an image dipole. 13,14) Some functional NFT designs include the triangular antenna, 13,15) E antenna, 16) lollipop structure, 17) bowtie aperture, 18,19) C-aperture, 20,21) and nanobeak antenna. 22,23) Increasing the efficiency of the coupling of the incident laser power to the recording medium is one of the primary goals in designing a better NFT.…”
Section: Introductionmentioning
confidence: 99%
“…This is achieved by several approaches including: 1) making the structure resonant at a particular wavelength; 2) utilizing the "lightning rod" effect, which essentially relies on the fact that the electric field concentrates along the sharp tips or notches in the geometric design; and 3) by efficient use of an image dipole. 13,14) Some functional NFT designs include the triangular antenna, 13,15) E antenna, 16) lollipop structure, 17) bowtie aperture, 18,19) C-aperture, 20,21) and nanobeak antenna. 22,23) Increasing the efficiency of the coupling of the incident laser power to the recording medium is one of the primary goals in designing a better NFT.…”
Section: Introductionmentioning
confidence: 99%
“…The dimensions of both the resonator and the sharp feature need to be optimized to achieve the best energy coupling efficiency. Common designs include triangle antenna [28,29] and triangle aperture [30,31], C aperture [32][33][34][35][36], bowtie antenna [37][38][39][40] and bowtie aperture [15,23,[41][42][43][44].…”
Section: Figure 3 (A)mentioning
confidence: 99%