Near-field scattering property in readout signals of a super-resolution near-field structure disk

Author

Nakano, Takashi ; Kikukawa, Takashi ; Tominaga, Junji

Author_Institution

Lab. for Adv. Opt. Technol., Nat. Inst. of Adv. Ind. Sci. & Technol., Ibaraki, Japan

Volume

1

fYear

2002

fDate

2002

Firstpage

235

Abstract

The optical property of the readout signal of the super-RENS disk was experimentally examined using a disk drive tester with the mask on the pupil plane of the pick up lens. The signal distribution of the small marks was different from that of a conventional optical disk. The distribution was similar to the radiation from a small light source (scattering center) in the mask layer. We may reconsider the design of the optical pickup to decrease the noise without the degradation of the carrier.

Keywords

light scattering; optical disc storage; optical information processing; pick-ups; disk drive tester; near-field scattering property; optical data storage; optical pickup design; pick up lens; pupil plane; readout signals; recording density; scattering center; small mark signal distribution; super-RENS disk; super-resolution near-field structure disk; Degradation; Disk drives; Lenses; Light scattering; Light sources; Optical design; Optical noise; Optical scattering; Signal resolution; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society, 2002. LEOS 2002. The 15th Annual Meeting of the IEEE

ISSN

1092-8081

Print_ISBN

0-7803-7500-9

Type

conf

DOI

10.1109/LEOS.2002.1134014

Filename

1134014