10 January 2002 Near-field readout system for a high-density optical ROM disc
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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
Abstract
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.
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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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