High-density magneto-optical disk suitable for short wavelength recording

Yoon-Gi Kim; Yong-Jin Ahn; Hyeon-Chang Hong; In-Duk Hwang; Dong-Ho Shin

doi:10.1117/12.218720

8 September 1995 High-density magneto-optical disk suitable for short wavelength recording

Yoon-Gi Kim, Yong-Jin Ahn, Hyeon-Chang Hong, In-Duk Hwang, Dong-Ho Shin

Proceedings Volume 2514, Optical Data Storage '95; (1995) https://doi.org/10.1117/12.218720
Event: Optical Data Storage '95, 1995, San Diego, CA, United States

Abstract

High density magneto-optical recording was realized with the combination of a compact green laser and a very sensitive NdTbFeCo/TbFeCo MO disk for the wavelength of 532 nm. This media has a high Kerr rotation angle at 532 nm and maintains a stable recording domain. With an objective lens of 0.6 NA, CNR of 48 dB and jitter of 3.0 nsec by mark edge recording was obtained for a mark length of 0.45 micrometers (0.34 micrometers /bit) at a writing power of 4.5 mW.

Citation Download Citation

Yoon-Gi Kim, Yong-Jin Ahn, Hyeon-Chang Hong, In-Duk Hwang, and Dong-Ho Shin "High-density magneto-optical disk suitable for short wavelength recording", Proc. SPIE 2514, Optical Data Storage '95, (8 September 1995); https://doi.org/10.1117/12.218720

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