Increasing ZnF2 content enhancing the near- and mid-infrared emission in Er3+/Yb3+ codoped oxyfluorotellurite glasses with decreased hydroxyl

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

“…According to previous studies, the absorption peak at 3 μm is attributed to OH − groups, and the elimination of OH − groups in BTW glass will be systematically studied in future work. [33][34][35] The laser damage resistance of optical materials is determined by their LDT. Therefore, a large LDT is essential for AO materials used for laser timedomain modulation.…”

Up- and Down-Convertible LaF3:Yb,Er Nanocrystals with a Broad Emission Window from 350 nm to 2.8 μm: Implications for Lighting Applications

“…UCPs are effective in improving the conversion efficiency in solar cells, bioimaging, and disinfecting bacteria present in water. − Near-infrared (NIR) excitation of UCPs is particularly useful for bioimaging owing to deep penetration depth, low or no autofluorescence, and reduced light scattering compared to ultraviolet (UV)/blue-green light excitation . Generation of violet-blue photons from NIR light is also quite important for biomedical applications, photoinduced drug delivery, photodynamic therapy, and optogenetics where large anti-Stokes shift is needed . On the other hand, efficient NIR and mid-infrared (MIR) emissions via downconversion (DC) are typically difficult to achieve but can be utilized in a wide variety of applications ranging from optical fiber communication, medical surgery, eye-safe laser radar, hazardous chemicals detection, remote sensing, pollution monitoring, and so forth .…”

“…5 Generation of violet-blue photons from NIR light is also quite important for biomedical applications, photoinduced drug delivery, photodynamic therapy, and optogenetics where large anti-Stokes shift is needed. 6 On the other hand, efficient NIR and midinfrared (MIR) emissions via downconversion (DC) are typically difficult to achieve but can be utilized in a wide variety of applications ranging from optical fiber communica-tion, medical surgery, eye-safe laser radar, hazardous chemicals detection, remote sensing, pollution monitoring, and so forth. 6 Such wide light emission spanning the violet to MIR region would be a boon to the lighting community in designing efficient light-emitting diodes, solar panels, optical fibers, and a variety of other telecommunication-related applications.…”