A Feasibility Study of Writing Compensation for Tangential Tilt.

  • Lee Kyung-Geun
    DMS Laboratory, Corporate R&D Center, Samsung Electronics Co., Ltd., 416, Maetan-3ding, Paldal-gu, Suwon City, Kyungki-Do 442-742, Korea
  • Joo Seong-Sin
    DMS Laboratory, Corporate R&D Center, Samsung Electronics Co., Ltd., 416, Maetan-3ding, Paldal-gu, Suwon City, Kyungki-Do 442-742, Korea
  • Otsuka Tatsuo
    DMS Laboratory, Corporate R&D Center, Samsung Electronics Co., Ltd., 416, Maetan-3ding, Paldal-gu, Suwon City, Kyungki-Do 442-742, Korea
  • Kim Yoon-Gi
    DMS Laboratory, Corporate R&D Center, Samsung Electronics Co., Ltd., 416, Maetan-3ding, Paldal-gu, Suwon City, Kyungki-Do 442-742, Korea
  • Park In-Sik
    DMS Laboratory, Corporate R&D Center, Samsung Electronics Co., Ltd., 416, Maetan-3ding, Paldal-gu, Suwon City, Kyungki-Do 442-742, Korea
  • Shin Dong-Ho
    DMS Laboratory, Corporate R&D Center, Samsung Electronics Co., Ltd., 416, Maetan-3ding, Paldal-gu, Suwon City, Kyungki-Do 442-742, Korea

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  • Feasibility Study of Writing Compensation for Tangential Tilt

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説明

For achieving a higher density than that of current digital versatile discs(DVD), a high numerical aperture(NA) and blue wavelength light source is tested to increase the areal density. In contrast to this positive effect, the coma aberration is doubled with a NA of 0.65 and wavelength of 400 nm compared to that of the current rewritable DVD at the same disc tilt. Additionally, the effective power density for recording is much smaller than that in the case of a DVD with a tilt. In this paper an efficient compensation method for disc tilt will be presented.

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