Local laser cooling of Yb:YLF to 110 K

Local laser cooling of Yb:YLF to 110 K

Minimum achievable temperature of ~110 K is measured in a 5% doped Yb:YLF crystal at λ = 1020 nm, corresponding to E4-E5 resonance of Stark manifold. This measurement is in excellent agreement with the laser cooling model and was made possible by employing a novel and sensitive implementation of dif...

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Veröffentlicht in:Optics express 2011-09, Vol.19 (19), p.18229-18236
Hauptverfasser: Seletskiy, Denis V, Melgaard, Seth D, Epstein, Richard I, Di Lieto, Alberto, Tonelli, Mauro, Sheik-Bahae, Mansoor
Format: Artikel
Sprache:eng
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Zusammenfassung:Minimum achievable temperature of ~110 K is measured in a 5% doped Yb:YLF crystal at λ = 1020 nm, corresponding to E4-E5 resonance of Stark manifold. This measurement is in excellent agreement with the laser cooling model and was made possible by employing a novel and sensitive implementation of differential luminescence thermometry using balanced photo-detectors.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.19.018229