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Proceedings Paper

Comparative performance analysis of 100% fill-factor microlens arrays fabricated by various methods
Author(s): A. Akatay; A. Waddie; H. Suyal; M. Taghizadeh; H. Urey
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Paper Abstract

Fill-factor of microlens arrays (MLAs) is one of the most important performance criteria of microlens arrays (MLA), especially in imaging applications. Low fill-factor lenses suffer greatly from spurious light and diffraction affects and result in low contrast in a beam steering system. Contrast ratio of low fill-factor circular shaped microlens arrays is nearly one-fourth of that of the system with high fill-factor square shaped microlens arrays. In this study performance of various types of nearly 100% fill-factor spherical MLAs in beam steering applications are compared. Design and fabrication of the MLAs are studied. A new hybrid method for design and fabrication of 100% fill-factor MLAs--by combining refractive-diffractive lenses, is suggested and tested.

Paper Details

Date Published: 21 April 2006
PDF: 11 pages
Proc. SPIE 6185, Micro-Optics, VCSELs, and Photonic Interconnects II: Fabrication, Packaging, and Integration, 61850C (21 April 2006); doi: 10.1117/12.664051
Show Author Affiliations
A. Akatay, Koç Univ. (Turkey)
A. Waddie, Heriot-Watt Univ. (United Kingdom)
H. Suyal, Heriot-Watt Univ. (United Kingdom)
M. Taghizadeh, Heriot-Watt Univ. (United Kingdom)
H. Urey, Koç Univ. (Turkey)

Published in SPIE Proceedings Vol. 6185:
Micro-Optics, VCSELs, and Photonic Interconnects II: Fabrication, Packaging, and Integration
Hugo Thienpont; Mohammad R. Taghizadeh; Peter Van Daele; Jürgen Mohr, Editor(s)

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