Near-Field Optical Recording on a Pre-Grooved Phase-Change Disk in the Blue-Violet
スポンサーリンク
概要
- 論文の詳細を見る
Near-field optical recording was implemented on a pre-grooved phase-change disk by using a $\phi 1$ mm superhemispherical solid immersion lens (SIL) of 1.5 numerical aperture. The SIL unit was mounted on a two-axis actuator for enabling both gap-height and tracking controls. The gap height was precisely adjusted with a capacitance formed between the SIL and disk materials. Groove structures were fabricated on a glass substrate by a reactive-ion-etching (RIE) process and flattened with spin-on-glass (SOG) coating for obtaining reliable push-pull tracking error signals. The phase-change layer stack was optimized by a vector diffraction analysis in order to maximize evanescent coupling at the gap height as small as 50 nm. A bit density of 80 nm was demonstrated on the land of a pre-grooved disk at the wavelength of 407 nm.
- 2001-03-30
著者
-
ICHIMURA Isao
Giga Byte Laboratory, Sony Corporation Home Network Company
-
KISHIMA Koichiro
Giga Byte Laboratory, Sony Corporation Home Network Company
-
YAMAMOTO Kenji
Giga Byte Laboratory, Sony Corporation Home Network Company
-
KURODA Yuji
Giga Byte Laboratory, Sony Corporation Home Network Company
-
IIDA Atsushi
Giga Byte Laboratory, Sony Corporation Home Network Company
-
MASUHARA Shin
Giga Byte Laboratory, Sony Corporation Home Network Company
-
OSATO Kiyoshi
Giga Byte Laboratory, Sony Corporation Home Network Company
-
Saito Kimihiro
Giga Byte Laboratories Sony Corporation
-
Masuhara Shin
Giga Byte Laboratory, Sony Corporation Home Network Company, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo 141-0001, Japan
-
Kuroda Yuji
Giga Byte Laboratory, Sony Corporation Home Network Company, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo 141-0001, Japan
-
Masuhara Shin
Giga Byte Laboratories, Sony Corporation
関連論文
- Near-Field Optical Recording on a Pre-Grooved Phase-Change Disk in the Blue-Violet
- Optical Recording Using High Numerical-Aperture Microlens by Plasma Etching
- Near-Field Optical Recording on a Pre-Grooved Phase-Change Disk in the Blue-Violet
- Detection of Readout Signals on High-track Density MO-Disk Using an Optical Phase Shifter and Deep Land/groove Recording
- A Simulation of Magneto-Optical Signals in Near-Field Recording
- Optical Recording Using High Numerical-Aperture Microlens by Plasma Etching