High density recording with SIL-based near-field optical recording

Jin-Hong Kim; Seong-Hun Lee; Jeong-Kyo Seo

doi:10.1117/12.855794

11 June 2010 High density recording with SIL-based near-field optical recording

Jin-Hong Kim, Seong-Hun Lee, Jeong-Kyo Seo

Proceedings Volume 7730, Optical Data Storage 2010; 77300K (2010) https://doi.org/10.1117/12.855794
Event: Optical Data Storage 2010, 2010, Boulder, Colorado, United States

Abstract

High density rewritable recording and readout characteristics with a solid immersion lens (SIL)-based near-field recording (NFR) are investigated. Substrates for high density are prepared using a phase transition mastering technique. Cover-layers with different refractive index for different effective numerical apertures in the SIL optics are coated on rewritable NFR discs for cover-layer incident near-field recording configuration. Two different effective numerical apertures are chosen between 1.45 and 1.85 to cope with about 70 GB and more than 100 GB per disc, respectively. The performance readout signals is investigated and compared in terms of increasing recording densities with reducing track pitch.

Citation Download Citation

Jin-Hong Kim, Seong-Hun Lee, and Jeong-Kyo Seo "High density recording with SIL-based near-field optical recording", Proc. SPIE 7730, Optical Data Storage 2010, 77300K (11 June 2010); https://doi.org/10.1117/12.855794

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