期刊
OPTICAL MATERIALS EXPRESS
卷 2, 期 12, 页码 1723-1732出版社
OPTICAL SOC AMER
DOI: 10.1364/OME.2.001723
关键词
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资金
- Department of Energy [DE-EE0005327]
- University of Delaware Research Foundation (UDRF)
- US Department of Energy [DE-NA000421]
- United States Government
- NNSA/DNN RD
Thin film selenide glasses have emerged as an important material for integrated photonics due to its high refractive index, mid-IR transparency and high non-linear optical indices. We prepared high-quality As2Se3 glass films using spin coating from ethylenediamine solutions. The physio-chemical properties of the films are characterized as a function of annealing conditions. Compared to bulk glasses, as-deposited films possess a distinctively different network structure due to presence of Se-Se homopolar bonds and residual solvent. Annealing partially recovers the As-Se-3 pyramid structure and brings the film refractive indices close to the bulk value. Optical loss in the films measured at 1550 nm wavelength is 9 dB/cm, which was attributed to N-H bond absorption from residual solvent. (C)2012 Optical Society of America
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