Boltzmann vs. non-Boltzmann (non-linear) thermometry - Yb3+-Er3+ activated dual-mode thermometer and phase transition sensor via second harmonic generation

Teng Zheng,Marcin Runowski,Przemyslaw Wozny,Boleslaw Barszcz,Stefan Lis,Mauricio Vega,Jaime Llanos,Kevin Soler-Carracedo,Inocencio R. Martin

Journal of Alloys and Compounds（2022）

引用 12|浏览6

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摘要

•Synthesis of lanthanide doped BaTiO3 photonic polycrystalline materials, exhibiting SHG and upconversion luminescence.•Highly-sensitive dual-mode temperature sensing - non-linear (NLO) optical thermometry and Boltzmann thermometry.•Via detailed comparison, higher sensitivity and superior temperature resolution are obtained for NLO thermometry.•Phase transition (structure symmetric change) detection via the nonlinear optical spectroscopy.

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关键词

Non-linear optical thermometry, Second harmonic generation (SHG),Upconverting materials,Luminescent sensor,Thermal sensing, phase transition detection

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