Abstract

Using silicide material as a recording layer, we have achieved good results for a Super-RENS disc. By mainly controlling noble-metal and metal mixture ratio, signal quality was greatly enhanced. At the mark length of 75nm, the best CNR was about 45dB, write power was about 6.5mW, LFN was about 14dB, and single jitters for every length mark from 2T through 8T were below 10%. The readout signal was stable sustaining CNR>40dB during about 15,000 times reading. The so-called “3T-problem” was not observed.

© 2007 Optical Society of America