Fluorescence up-conversion for differential luminescence thermometry in Ho-doped crystals

Saeid Rostami; Mansoor Sheik-Bahae

doi:10.1117/12.2545518

24 February 2020 Fluorescence up-conversion for differential luminescence thermometry in Ho-doped crystals

Saeid Rostami, Mansoor Sheik-Bahae

Proceedings Volume 11298, Photonic Heat Engines: Science and Applications II; 112980T (2020) https://doi.org/10.1117/12.2545518
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

Abstract: The use of temperature-sensitive fluorescence up-conversion in Ho doped crystals for non-contact Differential Luminescence Thermometry (DLT) is investigated. The up-conversion fluorescence spectra of Ho³⁺-doped YLF crystals, subject to pumping within the ⁵I₈ - ⁵I₇ manifold (1899-2066 nm), are measured versus the temperature in a cryostat. Considerable changes in the measured photoluminescence spectra, and in the red, yellow and green upconversion spectra is observed as the temperature is reduced from 300 K to 80 K

Citation Download Citation

Saeid Rostami and Mansoor Sheik-Bahae "Fluorescence up-conversion for differential luminescence thermometry in Ho-doped crystals", Proc. SPIE 11298, Photonic Heat Engines: Science and Applications II, 112980T (24 February 2020); https://doi.org/10.1117/12.2545518

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