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Proceedings Paper

Development of glass microoptics for MidIR with hot embossing technology
Author(s): I. Kujawa; R. Stepien; A. J. Waddie; G. Skrabalak; M. R. Taghizadeh; R. Buczynski
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Paper Abstract

In this paper we report on the development of diffractive and refractive micro optical components devoted to MidIR applications. As a material we use a customized heavy metal oxide glasses with high transmission in the range 0.6÷6.0μm. Optimization of the glass composition in four- and five-component oxide systems for a broadband transmission window is difficult due to their excessive crystallization susceptibility. Several metals and alloys were tested for their suitability as a stamping medium. Optimal performance was obtained for selected brass and steel stamps, as well as for pure silica stamps. As a technology testboard we have developed 1D and 2D diffractive gratings with a minimum feature size of 5μm as well as Fresnel microlenses with a diameter of 200μm. The quality of the embossed elements was verified by comparison of the master and replicated elements using a non-contact white light interferometer.

Paper Details

Date Published: 8 May 2012
PDF: 7 pages
Proc. SPIE 8428, Micro-Optics 2012, 84281P (8 May 2012); doi: 10.1117/12.922711
Show Author Affiliations
I. Kujawa, Institute of Electronic Materials Technology (Poland)
R. Stepien, Institute of Electronic Materials Technology (Poland)
A. J. Waddie, Heriot-Watt Univ. (United Kingdom)
G. Skrabalak, Institute of Advanced Manufacturing Technology (Poland)
M. R. Taghizadeh, Heriot-Watt Univ. (United Kingdom)
R. Buczynski, Institute of Electronic Materials Technology (Poland)
Univ. of Warsaw (Poland)

Published in SPIE Proceedings Vol. 8428:
Micro-Optics 2012
Hugo Thienpont; Jürgen Mohr; Hans Zappe; Hirochika Nakajima, Editor(s)

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