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Proceedings Paper

Chalcogenide glass with good thermal stability for the application of molded infrared lens
Author(s): Ju Hyeon Choi; Young Jun Jang; Du Hwan Cha; Jeong-Ho Kim; Hye-Jeong Kim
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Paper Abstract

An interest of chalcogenide glass has been increased because of their use in preparing optical lenses in range of 3-12 μm. With recent advance in less costly uncooled detector technology, moldable lens using chalcogenide glass has drawn a great deal of attention. In this study, amorphous Ge-Sb-Se chalcogenide was prepared by a standard melt-quenching technique. Melted chalcogenide glass for moldable lens should have unique thermal and mechanic properties in order to be applied to molding process. Specifically, the Ge:Sb ratio were controlled in order to find out the most stable glass forming area. Thus, the optical, thermal and thermomechanical properties to find out the specific composition were characterized by FT-IR spectroscopy, Differential Scanning Calorimeter and Thermo Mechanical Analysis, respectively. The moldability of chalcogenide glass was characterized through the surface condition of glass samples. Finally, the preferential Ge:Sb ratio in Ge-Sb-Se based chalcogenide glass system was selected to fabricate moldable lenses.

Paper Details

Date Published: 31 October 2014
PDF: 6 pages
Proc. SPIE 9253, Optics and Photonics for Counterterrorism, Crime Fighting, and Defence X; and Optical Materials and Biomaterials in Security and Defence Systems Technology XI, 925310 (31 October 2014); doi: 10.1117/12.2068005
Show Author Affiliations
Ju Hyeon Choi, Korea Photonics Technology Institute (Korea, Republic of)
Young Jun Jang, Korea Photonics Technology Institute (Korea, Republic of)
Du Hwan Cha, Korea Photonics Technology Institute (Korea, Republic of)
Jeong-Ho Kim, Korea Photonics Technology Institute (Korea, Republic of)
Hye-Jeong Kim, Korea Photonics Technology Institute (Korea, Republic of)


Published in SPIE Proceedings Vol. 9253:
Optics and Photonics for Counterterrorism, Crime Fighting, and Defence X; and Optical Materials and Biomaterials in Security and Defence Systems Technology XI
Roberto Zamboni; Douglas Burgess; Gari Owen; François Kajzar; Attila A. Szep; Harbinder Rana, Editor(s)

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