Fluorescence intensity ratios (FIRs) of the 640 nm and 602 nm emissions from Sm³⁺ were recorded at various temperatures T to identify the temperature increases ΔT associated with laser‐induced local heating of Ag nanoparticles. The FIRs increased as intensities of the excitation beam from a 532‐nm continuous‐wave laser increased. Estimated T of the irradiated region increased to as high as 586°C when at laser irradiation of 1.5 W on the surface containing Ag nanoparticles. Local heating due to the surface plasmon resonance of Ag nanoparticles is a main reason for the ΔT that eventually leads to precipitation of PbS quantum dots in glasses.

中文翻译：

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Sm3 +的光学测温在激光诱导的局部加热下以沉淀玻璃中的PbS量子点

记录了在各种温度T下Sm ³⁺发出的640 nm和602 nm的荧光强度比（FIR），以确定与激光诱导的银纳米粒子局部加热有关的温度升高ΔT。随着532 nm连续波激光的激发光束强度的增加，FIR也会增加。当在含银纳米颗粒的表面上以1.5 W的激光辐照时，辐照区域的估计T升高至586°C。Ag纳米粒子的表面等离子体共振引起的局部加热是导致最终导致玻璃中PbS量子点沉淀的ΔT的主要原因。