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Basic Design and Structural and Optical Glass Characteristic Study of Chalcogenide Aspheric Lens  

Ko, Jun-Bin (Department of Precision Engineering, Hankook Univ.)
Kim, Jeong-Ho (Ultra-Precision Optics Team, Korea Photonics Technology Institute)
Byun, Dong-Hae (Department of Computer Aided Machine, College of Korea Polytechnic V)
Publication Information
Journal of the Korean Society for Precision Engineering / v.27, no.5, 2010 , pp. 69-74 More about this Journal
Abstract
An increasing interest towards the investigations of chalcogenide glasses has been observed in the past years. This interest is due to their specific properties, as well as to the possibilities for their application in different fields of science. The optical devices, working on the basis of photoinduced phase transition between amorphous and crystalline state in the chalcogenide glasses, are a perspective for the micro- and nano-electronics. Here we were analysis basic physical properties for Ge-As-Se and As-Se chalcogenide glasses samples for characteristic for a planning of chalcogenide aspheric lens. From differential DTA/TG results, activation energies of the crystallizations of $Ge_{10}As_{40}Se_{50}$ and $As_{40}Se_{60}$ were approximately 3.6 eV and 3.3 eV, respectively.
Keywords
Chalcogenide Glasses; DTA/TGA; Aspheric Lens; Optical Glass; EPMA; EDX;
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