Characterization of new sulfur and selenium-based glasses containing lead iodide

Formation and Properties of GeSe2–Ga2Se3–PbI2 Novel Chalcohalide Glasses

“…C halcogenide glasses have attracted attention because they are potential candidates for application in infrared optics, photonic devices, ultra‐fast all‐optical switches, etc 1–3 . Recently, the optical nonlinear sulfide‐based chalcogenide and chalcohalide glasses have been investigated by many researchers 3–5 . As a general rule, the glasses possessing high nonlinear indices should be glasses of high linear susceptibility and high linear indices containing heavy elements.…”

“…As a general rule, the glasses possessing high nonlinear indices should be glasses of high linear susceptibility and high linear indices containing heavy elements. Selenium, being heavier than sulfur, is known to raise the linear index and is expected to enhance the nonlinearity in glasses 4 . Furthermore, because of the heavier atomic mass and higher polarizability of Pb, new higher third‐order nonlinear selenide‐based glasses, introducing heavy metal iodides such as PbI 2 , can be obtained 4,5 From this point of view, in this paper, PbI 2 was introduced into Ge–Ga–Se glass matrix and the glass‐forming region of the GeSe 2 –Ga 2 Se 3 –PbI 2 new system was determined.…”