Advanced lens design for bit-wise volumetric optical data storage

Yan Zhang, Thomas D Milster, Jai Soon Kim, Sang Ki Park

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The storage capacity of a fluorescent bit-wise volumetric optical data storage system is limited by the inter-layer crosstalk and the maximum compensation range of spherical aberration induced by different layers inside the medium. Lens designs of far-field and near-field optical systems suitable for volumetric storage are presented. The maximum compensation range of each design is calculated. The storage densities of far-field and near-field confocal systems in terms of bits-in-2re derived based on the maximum compensation ranges and appropriate data layer spacings that induce a -30 dB maximum level of inter-layer crosstalk. It is shown that an optimized near-field system is able to achieve 1.65 Tb-in-2 data density.

Original languageEnglish (US)
Pages (from-to)4929-4936
Number of pages8
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume43
Issue number7 B
DOIs
StatePublished - Jul 2004

Fingerprint

Optical data storage
lens design
data storage
Lenses
Crosstalk
near fields
crosstalk
far fields
Aberrations
Optical systems
aberration
spacing
Compensation and Redress

Keywords

  • Crosstalk
  • Near-field optical storage
  • Signal-to-noise ratio
  • Volumetric data storage

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Advanced lens design for bit-wise volumetric optical data storage. / Zhang, Yan; Milster, Thomas D; Kim, Jai Soon; Park, Sang Ki.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 43, No. 7 B, 07.2004, p. 4929-4936.

Research output: Contribution to journalArticle

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