%0 Journal Article %T Improvements on the optical properties of Ge-Sb-Se chalcogenide glasses with iodine incorporation %+ Laboratory of Infrared Material and Devices %+ Institut des Sciences Chimiques de Rennes (ISCR) %A Jiang, Chen %A Wang, Xunsi %A Zhu, Qingde %A Nie, Qiuhua %A Zhu, Minming %A Zhang, Peiquan %A Dai, Shixun %A Shen, Xiang %A Xu, Tiefeng %A Cheng, Ci %A Liao, Fangxing %A Liu, Zijun %A Zhang, Xianghua %Z This work was financially supported by the National Program on Key Basic Research Project (973 Program) (Grant No. 2012CB722703), The Natural Science Foundation of China (Grant Nos. 61377099, 61435009 and 61177087), Scientific Research Fund of Zhejiang Provincial Education Department (R1101263), Natural Science Foundation of Ningbo (Grant No. 2013A610118), Teaching and Research Award Program for Outstanding Young Teachers in Higher Education Institutions of MOE, P.R.C. Ningbo Optoelectronic Materials and Devices Creative Team (2009B21007), Scientific Research Foundation of the Graduate School of Ningbo University, and the K. C. Wong Magna Fund of Ningbo University. %< avec comité de lecture %@ 1350-4495 %J Infrared Physics and Technology %I Elsevier %V 73 %P 54-61 %8 2015-11 %D 2015 %R 10.1016/j.infrared.2015.09.001 %K Fiber materials %K Glass and other amorphous materials %K infrared spectroscopy %K Optical properties %K Raman spectroscopy %Z Life Sciences [q-bio]Journal articles %X Decreasing glass network defects and improving optical transmittance are essential work for material researchers. We studied the function of halogen iodine (I) acting as a glass network modifier in Ge–Sb–Se–based chalcogenide glass system. A systematic series of Ge20Sb5Se75-xIx (x = 0, 5, 10, 15, 20 at%) infrared (IR) chalcohalide glasses were investigated to decrease the weak absorption tail (WAT) and improve the mid-IR transparency. The mechanisms of the halogen I affecting the physical, thermal, and optical properties of Se-based chalcogenide glasses were reported. The structural evolutions of these glasses were also revealed by Raman spectroscopy and camera imaging. The progressive substitution of I for Se increased the optical bandgap. The WAT and scatting loss significantly decreased corresponding to the progressive decrease in structural defects caused by dangling bands and structure defects in the original Ge20Sb5Se75 glass. The achieved maximum IR transparency of Ge–Sb–Se–I glasses can reach up to 80% with an effective transmission window between 0.94 μm to 17 μm, whereas the absorption coefficient decreased to 0.029 cm-1 at 10.16 μm. Thus, these materials are promising candidates for developing low-loss IR fibers. %G English %2 https://univ-rennes.hal.science/hal-01198729/document %2 https://univ-rennes.hal.science/hal-01198729/file/Improvements%20on%20the%20optical%20properties%20of%20Ge-Sb-Se_accepted.pdf %L hal-01198729 %U https://univ-rennes.hal.science/hal-01198729 %~ UNIV-RENNES1 %~ CNRS %~ INSA-RENNES %~ ENSC-RENNES %~ ISCR %~ SCR_VC %~ STATS-UR1 %~ UR1-SPM %~ INC-CNRS %~ UR1-UFR-SPM %~ UR1-HAL %~ UR1-SDLM %~ UR1-SDLMJONCH %~ IVER %~ TEST-UNIV-RENNES %~ TEST-UR-CSS %~ UNIV-RENNES %~ INSA-GROUPE %~ UR1-MMS %~ TEST2-HALCNRS