Chalcogenide glasses (ChG) has emerged as important materials due to their potential applications in infrared optics for communication, imaging, limiting, remote sensing and laser power delivery etc. Examining ChG for their various applications, different properties of these were under immense investigation by various researchers from nearly every part of the world. Study of ChG for optical properties like optical band gap and refractive index are the backbone while considering them for applications. The present review focuses on the optical properties of various binary, ternary and quaternary chalcogenide systems. Subsequently applications and future prospects of ChG have been sketched. The attracting prospective applications have drive us to put the review on optical properties of chalcogenide thin films both comprehensive and expedient to new as well as established researchers in this area.

中文翻译：

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硫系玻璃薄膜光学性能研究进展

硫属化物玻璃 (ChG) 因其在通信、成像、限制、遥感和激光功率传输等红外光学方面的潜在应用而成为重要的材料。几乎来自世界各地的研究人员。研究 ChG 的光学特性（如光学带隙和折射率）是主干，同时考虑它们的应用。本综述重点关注各种二元、三元和四元硫属化物系统的光学特性。ChG 随后的应用和未来前景已经被勾勒出来。