Optical TAMR Head Design for Placing a Heating Spot Close to a Magnetic Pole
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概要
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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 a result, we can decrease the distance between the optical heating spot and the magnetic write pole. We present some simulation results of optical near-field generation. The distance between the near-field spot and the magnetic pole is decreased to 120 nm. This configuration is useful in decreasing the time lag between optical heating and magnetic writing.
著者
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Osawa K.
Business Development Department, Technology Development Headquarters, Konica Minolta Opto, Inc.
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Sekine K.
Business Development Department, Technology Development Headquarters, Konica Minolta Opto, Inc.
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Saka M.
MEMS Device R&D Division, Device Technology R&D Laboratories, Konica Minolta Technology Center, Inc.
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Nishida N.
Business Development Department, Technology Development Headquarters, Konica Minolta Opto, Inc.
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Hatano H.
Business Development Department, Technology Development Headquarters, Konica Minolta Opto, Inc.
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Saka M.
MEMS Device R&D Division, Device Technology R&D Laboratories, Konica Minolta Technology Center, Inc.