Chalcogenide glasses for photonics device applications

摘要: Chalcogenides are compounds formed predominately from one or more of the chalcogen elements; sulphur, selenium and tellurium. Although first studied over fifty years ago, interest in chalcogenide glasses has, past few years, increased significantly as glasses, crystals alloys find new life a wide range photonic devices. This chapter begins with an overview glass compositions, their purification, synthesis fabrication. Focussing on novel gallium lanthanum sulphide based chalcogenides, well reviewing established materials such arsenic trisulphide we then explore purification these materials, along basic optical thermal properties. Next fabrication versatile into variety forms; including thin films, microspheres fibers is explained. ends representative applications exciting optoelectronic materials.