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Condensed Matter > Mesoscale and Nanoscale Physics
Title: Overcoming temperature limits in the optical cooling of solids using light-dressed states
(Submitted on 29 Sep 2022 (v1), last revised 5 Apr 2024 (this version, v3))
Abstract: Laser cooling of solids currently has a temperature floor of 50 - 100 K. We propose a method that could overcome this using defects, such as diamond color centers, with narrow electronic manifolds and bright optical transitions. It exploits the dressed states formed in strong fields which extend the set of phonon transitions and have tunable energies. This allows an enhancement of the cooling power and diminishes the effect of inhomogeneous broadening. We demonstrate these effects theoretically for the silicon-vacancy and the germanium-vacancy, and discuss the role of background absorption, phonon-assisted emission, and non-radiative decay.
Submission history
From: Paul Eastham [view email][v1] Thu, 29 Sep 2022 11:30:48 GMT (245kb,D)
[v2] Thu, 19 Oct 2023 12:39:40 GMT (493kb,AD)
[v3] Fri, 5 Apr 2024 15:17:08 GMT (380kb,AD)
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