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- W4385429149 abstract "Laser cooling of a semiconductor material, in which heat is extracted by the emission of photons, requires near-perfect external radiative efficiency. In this theoretical work, we propose a cooling system based on carrier extraction in a large-band-gap reservoir. The electron-hole pairs generated in the material to be cooled are extracted in such a reservoir by absorption of phonons, then carrying a heat flux. With an analytical detailed-balance model, we show that this concept is applicable even in materials with moderate external radiative efficiency. Moreover, by adjustment of the band gap of the reservoir to the laser power, this system can either reach high efficiency or transfer high power with lower efficiency." @default.
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- W4385429149 date "2023-07-31" @default.
- W4385429149 modified "2023-10-18" @default.
- W4385429149 title "Laser Cooling in Semiconductor Heterojunctions by Extraction of Photogenerated Carriers" @default.
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- W4385429149 doi "https://doi.org/10.1103/physrevapplied.20.014066" @default.
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