New materials for super resolution disc

K. Kwak; S. Kim; C. Lee; K. Song

doi:10.1117/12.738936

11 July 2007 New materials for super resolution disc

K. Kwak, S. Kim, C. Lee, K. Song

Proceedings Volume 6620, Optical Data Storage 2007; 662014 (2007) https://doi.org/10.1117/12.738936
Event: Optical Data Storage 2007, 2007, Portland, OR, United States

Abstract

Using metal/Si materials as a recording layer, we have achieved good results for a SR (super resolution) WORM (write-once read many) disc. Mainly by controlling metal composition and the ratio of metal to Si of recording layer, signal qualities were greatly enhanced. At the mark length of 75nm, the best CNR (carrier to noise) was about 45dB, write power was reduced down to 6.5mW, and minimum LFN (low frequency noise) was about 11.7dB. Jitters of single tone pattern mark for every length marks from 2T through 8T were below 10%. Readout signal was stable over 2.25×10⁵ times reading. So-called "3T-problem" was not observed.

Citation Download Citation

K. Kwak, S. Kim, C. Lee, and K. Song "New materials for super resolution disc", Proc. SPIE 6620, Optical Data Storage 2007, 662014 (11 July 2007); https://doi.org/10.1117/12.738936

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