Abstract
Infrared to green up-conversion emissions centered at the wavelengths of about 524 and 550 nm of the Er3+-Yb3+ 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 Er3+-Yb3+ 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 Er3+-Yb3+ codoped borosilicate glass plays a major role in temperature measurement.
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Feng, Z., Bai, L., Cao, B. et al. Er3+-Yb3+ codoped borosilicate glass for optical thermometry. Sci. China Phys. Mech. Astron. 53, 848–851 (2010). https://doi.org/10.1007/s11433-010-0188-9
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DOI: https://doi.org/10.1007/s11433-010-0188-9