Optical cooling in multi-level systems

Steven R. Bowman; Joseph Ganem; Christopher G. Brown

doi:10.1117/12.2040073

19 February 2014 Optical cooling in multi-level systems

Steven R. Bowman, Joseph Ganem, Christopher G. Brown

Proceedings Volume 9000, Laser Refrigeration of Solids VII; 90000G (2014) https://doi.org/10.1117/12.2040073
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

A theoretical model for optical cooling is developed, which yields the overall efficiency of a single endpumped cooling system. This model includes the effects of background absorption and pump saturation, while in multi-level systems, the model accounts for the important energy transfer processes. Two-level efficiency is evaluated for the case of Yb:YAG and compared with a hypothetical three-level material with identical spectral properties. This model is readily modified to include more levels and different materials.

Citation Download Citation

Steven R. Bowman, Joseph Ganem, and Christopher G. Brown "Optical cooling in multi-level systems", Proc. SPIE 9000, Laser Refrigeration of Solids VII, 90000G (19 February 2014); https://doi.org/10.1117/12.2040073

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