Overcoming temperature limitations in laser cooling using dressed states and diamond vacancies
Citation:
Paul Eastham, Conor Murphy, Luisa Toledo Tude, Overcoming temperature limitations in laser cooling using dressed states and diamond vacancies, Proc. SPIE, OPTO 2025 (SPIE Photonics West), Denis V. Seletskiy and Masaru K. Kuno and Peter J. Pauzauskie, 13379, SPIE, 2025, 133790GDownload Item:
Abstract:
The established approach to laser cooling of solids relies on anti-Stokes fluorescence, for example from rare earth
impurities in glass. Although successful, there is a minimum temperature to which such a process can cool set by
the electronic level spacing in the impurity. We propose an alternative method which does not suffer from this
limitation. Our approach relies on the formation of dressed states under strong laser driving, which generates a
spectrum in which the gaps can be tuned to optimize the heat absorption. This allows for a cooling cycle which
operates at any temperature with a power comparable to the maximum dictated by thermodynamic principles.
While this cooling cycle will compete with heating due to non-radiative decay and other mechanisms, it could
in principle allow laser cooling to temperatures which are unachievable with anti-Stokes fluorescence.
Author's Homepage:
http://people.tcd.ie/easthampDescription:
PUBLISHED
Author: Eastham, Paul
Other Titles:
Proc. SPIEOPTO 2025 (SPIE Photonics West)
Publisher:
SPIEType of material:
Conference PaperCollections
Series/Report no:
13379;Availability:
Full text availableSubject (TCD):
Nanoscience & Materials , Condensed matter, electronic, magnetic and superconductive properties , Nanotechnology , Optics , Quantum Physics , Theory and computational physicsDOI:
https://doi.org/10.1117/12.3041722Metadata
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