Elimination of jitter in microlens illuminated optical probe array using a filtering layer for the optical read only memory card system

Seok Min Kim, Hongmin Kim, Jiseok Lim, Shinill Kang, Young Joo Kim, Rob Hendriks, Aukje Kastelijn, Christopher Busch

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

To increase the optical efficiency and areal density of optical read only memory (ROM) card system, a microlens array for generating optical probes by Talbot effects was suggested instead of the aperture array in the previous system. In the microlens array, however, the light from the corner of lens elements can cause the jitter in the optical probes. To eliminate this jitter, a filtering layer is suggested for filtering the light from the comer of lenses. To determine the opening size of filtering layer, the effect of opening size on the jitter and alignment tolerance were examined, which results in the optimum size of 10 μm. The microlens array was integrated on the filtering layer by a UV-molding process. Finally, the elimination of jitter was verified by comparing the beam intensity distributions at the Talbot plane generated by only microlens array and microlens array with filtering layer.

Original languageEnglish
Pages (from-to)1162-1166
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume45
Issue number2 B
DOIs
Publication statusPublished - 2006 Feb 24

All Science Journal Classification (ASJC) codes

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

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