10 January 2002 Optical flying head for a near-field recording system
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Proceedings Volume 4342, Optical Data Storage 2001; (2002) https://doi.org/10.1117/12.453433
Event: Optical Data Storage, 2001, Santa Fe, NM, United States
Abstract
We report a novel optical head based on the combination of a solid immersion lens and fiber optics with a flying slider for a practical near-field recording system. The configurations proposed here, are capable of near-field recording using magneto-optical detection and phase-change detection. 50nm of the flying height of the optical slider was obtained at a linear velocity of 10m/s. The effective numerical aperture of the SIL itself was 1.24 and the rms value of the wavefront aberration of the SIL was 0.0367 lambda. This rms value can realize an accurate readout at a practical level. Further, the carrier to noise ratio for the mark length of 0.2 micrometers on a spin stand was about 41 dB. This result indicates that a SIL can be combined with a flying slider for near-field recording.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Takashi Mizuno, Takashi Mizuno, Taro Hitosugi, Taro Hitosugi, Naoto Kojima, Naoto Kojima, Shigeru Yamazaki, Shigeru Yamazaki, Kageyasu Sako, Kageyasu Sako, Kenjiro Watanabe, Kenjiro Watanabe, } "Optical flying head for a near-field recording system", Proc. SPIE 4342, Optical Data Storage 2001, (10 January 2002); doi: 10.1117/12.453433; https://doi.org/10.1117/12.453433
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