Vibrational and structural properties of unmodified and radiation-modified chalcogenide glasses for advanced optical applications

Taras Kavetskyy; Oleh Shpotyuk; Valentyna Balitska; Galyna Dovbeshko; Ivan Blonskyy; Ivan Kaban; Walter Hoyer; Mihail Iovu; Andrei Andriesh

doi:10.1117/12.815947

2 December 2008 Vibrational and structural properties of unmodified and radiation-modified chalcogenide glasses for advanced optical applications

Taras Kavetskyy, Oleh Shpotyuk, Valentyna Balitska, Galyna Dovbeshko, Ivan Blonskyy, Ivan Kaban, Walter Hoyer, Mihail Iovu, Andrei Andriesh

Author Affiliations +

Proceedings Volume 7142, Sixth International Conference on Advanced Optical Materials and Devices (AOMD-6); 71420B (2008) https://doi.org/10.1117/12.815947
Event: Sixth International Conference on Advanced Optical Materials and Devices, 2008, Riga, Latvia

Abstract

Vibrational and structural properties of Ge_xSb_{40 x}S₆₀ (x = 25, 27, 35) chalcogeide glasses are studied in unmodified and γ-radiation-modified states by using infrared spectroscopy, high-energy synchrotron x-ray diffraction and extended x-ray absorption fine structure spectroscopy. An agreement between radiation-induced structural changes and vibrational properties measured is established. It is suggested that the atomic pairs with wrong coordination created in the framework of coordination topological defect formation concept play a key role in the formation of radiation-modified state of the investigated glasses. Advantages and disadvantages of post-technological radiation-modification of chalcogenide glasses are considered within configuration coordinate model for description of unmodified and radiationmodified states.

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Taras Kavetskyy, Oleh Shpotyuk, Valentyna Balitska, Galyna Dovbeshko, Ivan Blonskyy, Ivan Kaban, Walter Hoyer, Mihail Iovu, and Andrei Andriesh "Vibrational and structural properties of unmodified and radiation-modified chalcogenide glasses for advanced optical applications", Proc. SPIE 7142, Sixth International Conference on Advanced Optical Materials and Devices (AOMD-6), 71420B (2 December 2008); https://doi.org/10.1117/12.815947

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