Projeto M3.3.C/Edições/022/2024

The chapter " Fundamental Concerns of Optical FIR-Based Thermometry" provides a comprehensive exploration of optical FIR temperature sensing, blending theoretical underpinnings with practical applications. It underscores the intrinsic sensitivity and non-invasiveness of FIR technology, spanning diverse scientific disciplines where its utility is paramount. Central to the discussion are the intricate energy transfer mechanisms within fluorescence emissions from temperaturesensitive materials, revealing their nuanced responses to thermal changes. Fundamental to FIR thermometry are the lanthanide ions (Ln3+), which play pivotal roles due to their unique electronic configurations. These elements exhibit temperature-dependent variations in fluorescence properties, including intensity and lifetime, crucial for accurate temperature determination. Specifically, the chapter delves into the utilization of erbium (Er3+) and holmium (Ho3+) ions in the context of FIR thermometry, highlighting their distinct contributions to enhancing temperature sensitivity. The Er3+/Ho3+ co-doped nano-garnet emerges as a promising material in this field, effectively bridging theoretical frameworks with practical implementations. The narrative is enriched by the incorporation of the Boltzmann distribution equation, which provides a robust theoretical foundation for understanding temperature-dependent fluorescence phenomena exhibited by Ln3+ ions. This chapter serves as a valuable resource, offering concise understandings into the forefront of optical FIR-based thermometry for researchers and professionals alike

The chapter " Fundamental Concerns of Optical FIR-Based Thermometry" provides a comprehensive exploration of optical FIR temperature sensing, blending theoretical underpinnings with practical applications. It underscores the intrinsic sensitivity and non-invasiveness of FIR technology, spanning diverse scientific disciplines where its utility is paramount. Central to the discussion are the intricate energy transfer mechanisms within fluorescence emissions from temperaturesensitive materials, revealing their nuanced responses to thermal changes. Fundamental to FIR thermometry are the lanthanide ions (Ln3+), which play pivotal roles due to their unique electronic configurations. These elements exhibit temperature-dependent variations in fluorescence properties, including intensity and lifetime, crucial for accurate temperature determination. Specifically, the chapter delves into the utilization of erbium (Er3+) and holmium (Ho3+) ions in the context of FIR thermometry, highlighting their distinct contributions to enhancing temperature sensitivity. The Er3+/Ho3+ co-doped nano-garnet emerges as a promising material in this field, effectively bridging theoretical frameworks with practical implementations. The narrative is enriched by the incorporation of the Boltzmann distribution equation, which provides a robust theoretical foundation for understanding temperature-dependent fluorescence phenomena exhibited by Ln3+ ions. This chapter serves as a valuable resource, offering concise understandings into the forefront of optical FIR-based thermometry for researchers and professionals alike