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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 13 — May. 1, 1998
  • pp: 2699–2707

Short-marks recording characteristics of laser-pumped magnetic-field-modulation recording in a narrow track pitch and on magnetically induced superresolution disks

Yasuhito Tanaka, Masaaki Kurebayashi, Teruo Kohashi, Yoshiteru Murakami, and Seiji Yonezawa  »View Author Affiliations


Applied Optics, Vol. 37, Issue 13, pp. 2699-2707 (1998)
http://dx.doi.org/10.1364/AO.37.002699


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Abstract

We evaluate laser-pumped magnetic-field-modulation (LP-MFM), continuous laser-irradiated magnetic-field-modulation, and light-intensity-modulation recording in magneto-optical disks, using temperature calculations and experiments. LP-MFM is useful for recording short marks: One can record magnetic domains as small as 0.15-μm marks with LP-MFM by using a spin-polarized scanning electron microscope. LP-MFM is also useful for reducing the track pitch. Experiments showed that no cross write occurred at a 0.6-μm track pitch, and calculation showed that the heat distribution is narrow. We confirmed the advantages of LP-MFM for recording magnetically induced superresolution disks by investigating the difference in the shapes of the recorded domains.

© 1998 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(180.5810) Microscopy : Scanning microscopy
(210.3810) Optical data storage : Magneto-optic systems
(230.3810) Optical devices : Magneto-optic systems

History
Original Manuscript: October 23, 1997
Revised Manuscript: January 27, 1998
Published: May 1, 1998

Citation
Yasuhito Tanaka, Masaaki Kurebayashi, Teruo Kohashi, Yoshiteru Murakami, and Seiji Yonezawa, "Short-marks recording characteristics of laser-pumped magnetic-field-modulation recording in a narrow track pitch and on magnetically induced superresolution disks," Appl. Opt. 37, 2699-2707 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-13-2699


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