10 January 2002 Near-field readout system for a high-density optical ROM disc
Author Affiliations +
Proceedings Volume 4342, Optical Data Storage 2001; (2002) https://doi.org/10.1117/12.453438
Event: Optical Data Storage, 2001, Santa Fe, NM, United States
We developed a near field readout system for an optical ROM disc with a GaN laser diode and a 1.4-effective-NA objective lens. We read out a 25 Gbyte optical ROM disc using a gap servo and a tracking servo in the near field read system, and experimentally confirmed an effective NA of 1.4.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tsutomu Ishimoto, Tsutomu Ishimoto, Kimihiro Saito, Kimihiro Saito, Takao Kondo, Takao Kondo, Ariyoshi Nakaoki, Ariyoshi Nakaoki, Masanobu Yamamoto, Masanobu Yamamoto, } "Near-field readout system for a high-density optical ROM disc", Proc. SPIE 4342, Optical Data Storage 2001, (10 January 2002); doi: 10.1117/12.453438; https://doi.org/10.1117/12.453438

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