Designs and tolerances of numerical aperture 0.8 objective lenses for page-based holographic data storage systems

Yuzuru Takashima, Lambertus Hesselink

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A two-element aspheric objective lens having numerical aperture (NA) of 0.8 has been designed for media interchangeable holographic recordings. Lens design tolerance of offence against the sine condition and lens aberrations of object and reference beams have been formalized by coupled wave theory and related to diffraction efficiency of holograms. An optimum first-order power arrangement of objective lenses having two air-spaced elements has been identified by minimizing fifth-order aberrations and is further optimized ray-tracebased optimization code. Within tolerances criteria required for media-interchangeable systems, the design has demonstrated high NA of 0.8 with long working distance of 20% of the focal length.

Original languageEnglish (US)
Article number03A004
JournalJapanese Journal of Applied Physics
Volume48
Issue number3 PART 2
DOIs
StatePublished - Mar 2009
Externally publishedYes

Fingerprint

numerical aperture
data storage
Lenses
lenses
Data storage equipment
aberration
Aberrations
lens design
Diffraction efficiency
rays
Holograms
recording
optimization
air
diffraction
Air

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Designs and tolerances of numerical aperture 0.8 objective lenses for page-based holographic data storage systems. / Takashima, Yuzuru; Hesselink, Lambertus.

In: Japanese Journal of Applied Physics, Vol. 48, No. 3 PART 2, 03A004, 03.2009.

Research output: Contribution to journalArticle

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