Experiments on a laser cooled Cr3+:LiSrAlF6 using an allowed transition

Junior R. Silva; Stephen C. Rand

doi:10.1117/12.3010150

13 March 2024 Experiments on a laser cooled Cr³⁺:LiSrAlF₆ using an allowed transition

Junior R. Silva, Stephen C. Rand

Proceedings Volume PC12902, Photonic Heat Engines: Science and Applications VI; PC129020E (2024) https://doi.org/10.1117/12.3010150
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

Thermal lens spectroscopy has been performed with a single-mode Ti:sapphire laser in a fluoride doped with trivalent transition metal ions. In samples with background absorption as high as 10-3 cm-1 an experimental quantum efficiency of 100% was determined at room temperature and the cooling efficiency via anti-Stokes fluorescence on an electric dipole transition has been shown to reach threshold in the near infrared spectral range. Cooling efficiencies as high as 20% are predicted for these fluoride crystals with impurity absorption coefficients reduced to 10-4 cm-1.

Conference Presentation

Citation Download Citation

Junior R. Silva and Stephen C. Rand "Experiments on a laser cooled Cr³⁺:LiSrAlF₆ using an allowed transition", Proc. SPIE PC12902, Photonic Heat Engines: Science and Applications VI, PC129020E (13 March 2024); https://doi.org/10.1117/12.3010150

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