2021
DOI: 10.1021/acsomega.1c00116
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Implementation of Laser-Induced Anti-Stokes Fluorescence Power Cooling of Ytterbium-Doped Silica Glass

Abstract: Laser cooling of a solid is achieved when a coherent laser illuminates the material, and the heat is extracted by annihilation of phonons resulting in anti-Stokes fluorescence. Over the past year, net solid-state laser cooling was successfully demonstrated for the first time in Yb-doped silica glass in both bulk samples and fibers. Here, we report more than 6 K of cooling below the ambient temperature, which is the lowest temperature achieved in solid-state laser cooling of silica glass to date to the best of … Show more

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Cited by 24 publications
(12 citation statements)
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“…Output powers like these can only be accomplished with, among other things, high-purity core materials with low background absorption. The background losses of these glasses were below 10 dB km −1 measured at a wavelength of 1200 nm, which has been found to be acceptable for laser cooling silica [10,19].…”
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confidence: 78%
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“…Output powers like these can only be accomplished with, among other things, high-purity core materials with low background absorption. The background losses of these glasses were below 10 dB km −1 measured at a wavelength of 1200 nm, which has been found to be acceptable for laser cooling silica [10,19].…”
mentioning
confidence: 78%
“…For the first 24 years of laser cooling research activity, the observations of optically cooling glasses were confined to non-silicates [5]. The paradigm has shifted recently with the success of cooling Yb-doped silica fibers and fiber preforms [9][10][11][12][13][14][15][16][17][18][19].…”
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confidence: 99%
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“…After the observation of solid-state laser cooling in Yb-doped silica glass recently [16][17][18][19] the idea of radiation balancing in fiber lasers and amplifiers seems more realistic. Bowman's expression of the RBL formalism in a bulk material results in a concluding equation that does not consider any relationship between pump and signal powers.…”
Section: Introductionmentioning
confidence: 99%