Synthesis and laser cooling of porous cubic α-NaYF nanocrystals

Lars Forberger; Michael A. Hilyard; Rachel Gariepy; Fábio Baum; Lilo D. Pozzo; Peter J. Pauzauskie

doi:10.1117/12.3011153

13 March 2024 Synthesis and laser cooling of porous cubic α-NaYF nanocrystals

Lars Forberger, Michael A. Hilyard, Rachel Gariepy, Fábio Baum, Lilo D. Pozzo, Peter J. Pauzauskie

Proceedings Volume PC12902, Photonic Heat Engines: Science and Applications VI; PC129020I (2024) https://doi.org/10.1117/12.3011153
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

We present the hydrothermal synthesis of highly porous α-NaYF nanocubes with edge lengths on the order of 150 nm using sodium dodecyl sulfate (SDS) as a ligand. The surface area is increased by a factor of four compared to hypothetical ideal cubes of the same size. Furthermore, the surface-to-volume ratio of these particles is higher than that of 50 nm spherical α-NaYF particles commonly obtained with EDTA under similar conditions, resulting in the highest surface-to-volume particles obtained with hydrothermal synthesis. Laser cooling at ambient pressure and laser heating of the same particles in vacuum is demonstrated. The implications of our results for payload cooling of optically levitated nanoscale sensors are discussed.

Conference Presentation

Citation Download Citation

Lars Forberger, Michael A. Hilyard, Rachel Gariepy, Fábio Baum, Lilo D. Pozzo, and Peter J. Pauzauskie "Synthesis and laser cooling of porous cubic α-NaYF nanocrystals", Proc. SPIE PC12902, Photonic Heat Engines: Science and Applications VI, PC129020I (13 March 2024); https://doi.org/10.1117/12.3011153

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