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Proceedings Paper

Morphological and optical characterization of hybrid-glass-based axicons
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Paper Abstract

This paper introduces the usage of directly UV-photopatternable sol-gel based materials and the processing methods for the fabrication of binary diffractive optical elements. We designed and modeled a binary axicon - an optical element, which produces almost diffraction free beam in a specified distance from the element. We fabricated sol-gel based hybrid-glass materials and tailored their processing parameters to fit the demands of the axicon design. Resolution of 2 microns, film thickness of 850 nm, and certain morphological properties were required. The materials were derived from zirconium(IV)isopropoxide, methacrylic acid, and methacryloxypropyltritethoxysilane. We determined the morphological and line quality of the fabricated axicons as a function of the UV-irradiation dose. In addition, we measured the optical characteristics of the axicons in terms of the axial and radial intensity profiles. The reasons for the differences between calculated and measured values are discussed.

Paper Details

Date Published: 10 June 2002
PDF: 8 pages
Proc. SPIE 4647, Functional Integration of Opto-Electro-Mechanical Devices and Systems II, (10 June 2002); doi: 10.1117/12.469820
Show Author Affiliations
Terho K. Kololuoma, VTT Electronics (Finland)
Kari J. Kataja, VTT Electronics (Finland)
Sanna M. Aikio, VTT Electronics (Finland)
Janne K. Aikio, VTT Electronics (Finland)
Juha T. Rantala, GuideOptics Oy (Finland)

Published in SPIE Proceedings Vol. 4647:
Functional Integration of Opto-Electro-Mechanical Devices and Systems II
Michael R. Descour; Juha T. Rantala, Editor(s)

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