Fabrication, characterization and the effects of femtosecond laser ablation on Te–As–Se glasses
Source abstract
Abstract
Abstract Te–As–Se (TAS) chalcogenide (ChG) glasses have broad transmission range of up to 18 μm and are suitable candidates for mid-infrared (MIR) applications. In this work, TAS glasses were synthesized via melt-quenching technique. Glass-forming domain was determined by X-ray diffraction (XRD) and differential scanning calorimeter (DSC). Optical properties and structural information were recorded. A series of glasses with compositions of TexAs40Se60-x (x == 0, 10, 20, 30, 40, 50, in mol%) was irradiated by 3 μm femtosecond (fs) laser with different powers. The morphology and structural information after laser ablation were then studied via scanning electron microscopy (SEM) and Raman technique. The laser damage threshold decreased from 29.45 mJ/cm2 to 21.93 mJ/cm2 with the increase in Te contents in the TexAs40Se60-x glasses. This study is of great importance in supercontinuum (SC) generation and infrared laser transmission based on TAS fibers in the MIR range.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Phase-change materials and chalcogenides · Glass properties and applications · Nonlinear Optical Materials Studies
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