Investigations on Ge Se Ge Sb Se chalcogenide glasses promising optical materials for hybrid photonic device applications

Abstract

Chalcogenide glasses possess impressive physical, optical, thermal, newlineand electrical characteristics that make them promising for applications in newlineoptics, photonics, and electronics, calling for additional exploration and newlinedevelopment. They are renowned for their ability to transmit infrared light, newlineelevated refractive index, capacity to effectively dissolve rare-earth newlineelements, strong photosensitivity, and substantial optical nonlinear newlineproperties, among other qualities. newlineThe work is dedicated to synthesizing selenium-rich Ge-Se/Ge-SbSe chalcogenide bulk glasses and creating their corresponding films. newlineFollowing this, thorough characterization is conducted as accurately newlinedetermining their properties is crucial for designing prototypes of photonic newlinedevices which are expected to function across a wide spectral range, newlineincluding both the near-infrared and mid-infrared regions. The study marks the first investigation into the nonlinear optical newlineresponse of chalcogenide glass colloids using the spatial self-phase newlinemodulation technique and also showcases the first-ever realization of an alloptical chalcogenide glass/titanium oxide hybrid photonic diode and alloptical modulation in chalcogenide glass colloids through spatial self-phase newlinemodulation, investigating potential applications of chalcogenide glasses in newlinenonlinear optics. newline