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Design of microlens illuminated aperture array fabricated by aligned ultraviolet imprinting process for optical read only memory card system
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10.1063/1.2208688
/content/aip/journal/apl/88/24/10.1063/1.2208688
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/24/10.1063/1.2208688
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Basic concept of (a) the previous aperture array and (b) the microlens illuminated aperture array.

Image of FIG. 2.
FIG. 2.

Fabrication process of the microlens illuminated aperture array: (a) fabrication process for the aperture array, (b) fabrication process for the mold for the microlens array, and (c) replication of the microlens array on the aperture array.

Image of FIG. 3.
FIG. 3.

Simulated light intensity profiles (a) from the surface of the designed microlens array in the direction of optical axis (focal length is and depth of focus is ) and (b) at the focal position of the microlens array [FWHM spot size is , plane in (a)].

Image of FIG. 4.
FIG. 4.

The normalized energy passing through aperture hole as a function of (a) longitudinal and (b) lateral misalignments.

Image of FIG. 5.
FIG. 5.

SEM images of (a) the fabricated aperture array and (b) the UV-imprinted microlens array (aperture diameter is , sag height of microlens is , period is , and array dimension is ).

Image of FIG. 6.
FIG. 6.

Measured intensity profiles of the optical probes at Talbot position using (a) an aperture array (maximum intensity is and FWHM spot size is ) and (b) the microlens illuminated aperture array (maximum intensity is and FWHM spot size is ).

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/content/aip/journal/apl/88/24/10.1063/1.2208688
2006-06-15
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Design of microlens illuminated aperture array fabricated by aligned ultraviolet imprinting process for optical read only memory card system
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/24/10.1063/1.2208688
10.1063/1.2208688
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