High density optical storage based on superresolution techniques employing optical path filtering and saturable absorption

Author

Boopathi, V. ; Wu, Yihong ; Chong, Tow C.

Author_Institution

Data Storage Inst., Nat. Univ. of Singapore, Singapore

Volume

34

Issue

2

fYear

1998

fDate

3/1/1998 12:00:00 AM

Firstpage

404

Lastpage

406

Abstract

Optical superresolution techniques to increase the density of data storage by source and medium modifications are explained. It is shown that the light distribution at the source can be modified using a phase filter. This results in overall energy efficiency and improvement in the frequency response of the optical read-out. The frequency response of the optical readout with source modification Is good at medium and high frequencies. The technique of superresolution through source modification, and with saturable absorber in the medium is proposed

Keywords

magneto-optical recording; optical disc storage; optical filters; optical saturable absorption; energy efficiency; frequency response; high density optical storage; light distribution; medium modifications; optical path filtering; optical read-out; phase filter; saturable absorption; source modification; superresolution techniques; Energy resolution; Filtering; Frequency response; Memory; Nonlinear optics; Optical crosstalk; Optical films; Optical filters; Optical saturation; Writing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.667776

Filename

667776