Er3+-Yb3+ codoped borosilicate glass for optical thermometry

Abstract

Infrared to green up-conversion emissions centered at the wavelengths of about 524 and 550 nm of the Er 3+ -Yb 3+ codoped borosilicate glass are recorded, using a 978 nm semiconductor laser diode (LD) as an excitation source. The fluorescence intensity ratio (FIR) of the green up-conversion emissions at about 524 and 550 nm in the Er 3+ -Yb 3+ codoped borosilicate glass has been studied as a function of temperature over the temperature range of 295-873 K. The maximum sensitivity and the temperature resolution derived from the FIR of the green up-conversion emissions are approximately 0.0038 K −1 and 0.2 K, respectively. It is demonstrated that the prototype optical temperature sensor based on the FIR technique from the green up-conversion emissions in the Er 3+ -Yb 3+ codoped borosilicate glass plays a major role in temperature measurement.Er 3+ -Yb 3+ codoped, optical temperature sensor, fluorescence intensity ratio PACS: 78.55.Hx, 81.40.Tv

Lanthanide Ion-Doped Bismuth Titanate Nanocomposites for Ratiometric Thermometry with Low Pump Power Density

“…Compared with the above materials, Yb 3+ /Er 3+ -codoped silicate and borosilicate glasses have higher chemical durability and thermal stability and are easier to manufacture into different forms. However, the silicate and borosilicate glasses usually have a pump power of up to 400 W/cm 2 in the experiment. , Each of the above materials has its own characteristics, but the excitation power density is large, which affects temperature measurement accuracy. Among the many hosts, the nanocrystalline composites have been widely applied in electronics, high-power microwave systems, distributed power systems, and pulsed power supplies because of their important technical value.…”