Magnetically induced super resolution in a novel magneto-optical disk

Katsuhisa Aratani; Atsushi Fukumoto; Masumi Ohta; Masahiko Kaneko; Kenjiro Watanabe

doi:10.1117/12.45903

1 July 1991 Magnetically induced super resolution in a novel magneto-optical disk

Katsuhisa Aratani, Atsushi Fukumoto, Masumi Ohta, Masahiko Kaneko, Kenjiro Watanabe

Proceedings Volume 1499, Optical Data Storage '91; (1991) https://doi.org/10.1117/12.45903
Event: Optical Data Storage, 1991, Colorado Springs, CO, United States

Abstract

A super resolution has been achieved in the magneto-optical disk using an exchange-coupled multilayer film. Two types of magnetically induced super resolution, front aperture detection and rear aperture detection have been successfully investigated. A high C/N of more than 42 dB is obtained experimentally for a mark length of 0.3 micrometers which is much shorter than the resolution limit expected from the conventional diffraction theory.

Citation Download Citation

Katsuhisa Aratani, Atsushi Fukumoto, Masumi Ohta, Masahiko Kaneko, and Kenjiro Watanabe "Magnetically induced super resolution in a novel magneto-optical disk", Proc. SPIE 1499, Optical Data Storage '91, (1 July 1991); https://doi.org/10.1117/12.45903

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