Design of microlens illuminated aperture array fabricated by aligned ultraviolet imprinting process for optical read only memory card system

Hongmin Kim, Jeeseung Lee, Jiseok Lim, Seok Min Kim, Shinill Kang, Young Joo Kim, Christopher Busch

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A microlens illuminated aperture array (MLIAA) was designed for the multiprobe optical read only memory card system. As a method to integrate the microlens array (MLA) with the aperture array containing 1000×1000 apertures, an aligned ultraviolet imprinting process was used to satisfy the system objectives of reduced focal length and reduced spot size. An analysis using diffraction theory was performed to obtain the design tolerances for both MLIAA and the imprinting process. The maximum intensity of the optical probes at the Talbot [Philos. Mag. 9, 401 (1836)] position from the fabricated MLIAA was 12 times higher than that from the aperture array without a MLA.

Original languageEnglish
Article number241114
JournalApplied Physics Letters
Issue number24
Publication statusPublished - 2006 Jun 12


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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