Micron scale thermometry using lanthanide doped tellurite glass
Daniel Stavrevski, Erik P Schartner, Amanda Abraham, Ivan Maksymov, Heike Ebendorff-Heidepriem, Robert A McLaughlin, Andrew D Greentree, A Mitchell (ed.), H RubinszteinDunlop (ed.)
AOS AUSTRALIAN CONFERENCE ON OPTICAL FIBRE TECHNOLOGY (ACOFT) AND AUSTRALIAN CONFERENCE ON OPTICS, LASERS, AND SPECTROSCOPY (ACOLS) 2019 | SPIE-INT SOC OPTICAL ENGINEERING | Published : 2019
Nanoscale thermometry of biological systems offers new insights into cell metabolism at a sub-cellular scale. Currently, there is no way in which we can achieve high resolution temperature sensing on these systems without the use of foreign materials such as biological markers. Using rare-earth doped tellurite glass as a platform for thermometry, we report micron scale scale temperature sensing via confocal scanning microscopy. We demonstrate this technique by monitoring the cooling from a water droplet and report a net temperature change of 7.04K with a sensitivity of 0.12K. These results pave the way for "marker free" micron scale temperature sensing in biological systems.
Awarded by Australian Research Council
The authors acknowledge the scientific and technical assistance of the Australian CNBP facilities. This work has been supported by Australian Research Council grants LP150100657, FT160100357, FT180100343 and CE140100003. This work was performed in part at the OptoFab node of the Australian National Fabrication Facility utilising Commonwealth and SA State Government funding.