Chalcogenide glass ceramics: A high-performing innovative infrared acousto-optic material

High‐Quality Acousto‐Optic Modulators with High Diffraction Efficiency, Polarization Extinction Ratio, and Small Insertion Loss Based on a Novel BaO–TeO2–WO3 Glass

“…BTW glass was measured to have a moderate sound velocity of 3422 m −1 s, which is less than that of quartz glass (5960 m −1 s) and higher than that of Ge 33 As 12 Se 55 glass (2518 m −1 s). [ 24 ] Small acoustic attenuation is essential for the AOM with excellent properties. The sound attenuation coefficient of the BTW glass was measured to be 0.653 dB cm −1 , smaller than that of quartz glass (12 dB cm −1 ) and Ge 33 As 12 Se 55 glass (7.1 dB cm −1 ), which makes it has predictable application advantages in AO glass.…”

“…The sound attenuation coefficient of the BTW glass was measured to be 0.653 dB cm −1 , smaller than that of quartz glass (12 dB cm −1 ) and Ge 33 As 12 Se 55 glass (7.1 dB cm −1 ), which makes it has predictable application advantages in AO glass. [ 24 ] (Sound velocity and sound attenuation coefficient test experiments are presented in the Supporting Information).…”

“…Recently, a series of chalcogenide glasses with large refractive indices have been reported, which exhibit excellent AO figures of merit and wide infrared cut-off edges. [21][22][23][24] More importantly, they do not contain toxic elements that are harmful to human health. However, the transmittance of chalcogenide glasses in the visible and near-infrared bands is not ideal, and it is more suitable for far-infrared bands.…”

Accelerated design of chalcogenide glasses through interpretable machine learning for composition–property relationships

“…It is experimentally proven in the literature that higher S content negatively impacts and shows linear dependence with ρ [43]. Figure 5(d) shows the compositional control of the E value where Se and S reduce the model predictions of E. In figure 5(e), Cu and Ni positively influence G, whereas Se and Ge show mixed effects; this could be attributed to the increase in tetrahedral structures of [GeSe 4 ] in the glass matrix that leads to the formation of a rigid network structure of glass leading to enhancement of elastic properties [44].…”

Native Crystal Growth Revealed by a Joint Microscopy–Calorimetry Technique in (GeS2)0.1(Sb2S3)0.9 Thin Amorphous Films: A Critical Role of Internal Stress and Mechanical Defects

“…In addition to their optical applications, the chalcogenide glasses are also known for being employed as optical and electrical memory materials, rewritable recording materials, solid electrolytes for batteries, sensitive electrochemical electrodes, ionic or superionic superconductors, transistors, or switches (owing to their semiconducting properties). − The second reason for the crystal growth rate studies in chalcogenide materials is the utilization of that information for controlled preparation of the crystalline phase. Such preparation can be either one-shot permanent formation of the chalcogenide ceramics and glass ceramics − or reversible, such as occurring in the state-of-the-art technologies based on the chalcogenide phase-change materials (nonvolatile memories, flexible displays, nanoscale switches, energy storage), − where the amorphous-to-crystalline transformation (induced by heating, lighting, or electrical means) represents a fundamental aspect of the device functionality.…”