Solid-state laser refrigeration of a composite semiconductor Yb:YLiF4 optomechanical resonator
- Univ. of Washington, Seattle, WA (United States). Materials Science and Engineering Dept.
- Univ. of Washington, Seattle, WA (United States). Molecular Engineering & Sciences Inst.
- Univ. of Washington, Seattle, WA (United States). Chemical Engineering Dept.
- Univ. of Washington, Seattle, WA (United States). Materials Science and Engineering Dept.; Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Univ. of Washington, Seattle, WA (United States). Inst. for Nano-Engineered Systems
Photothermal heating represents a major constraint that limits the performance of many nanoscale optoelectronic and optomechanical devices including nanolasers, quantum optomechanical resonators, and integrated photonic circuits. Here, we demonstrate the direct laser refrigeration of a semiconductor optomechanical resonator >20 K below room temperature based on the emission of upconverted, anti-Stokes photoluminescence of trivalent ytterbium ions doped within a yttrium-lithium-fluoride (YLF) host crystal. Optically-refrigerating the lattice of a dielectric resonator has the potential to impact several fields including scanning probe microscopy, the sensing of weak forces, the measurement of atomic masses, and the development of radiation-balanced solid-state lasers. In addition, optically refrigerated resonators may be used in the future as a promising starting point to perform motional cooling for exploration of quantum effects at mesoscopic length scales, temperature control within integrated photonic devices, and solid-state laser refrigeration of quantum materials.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); US Air Force Office of Scientific Research (AFOSR); National Science Foundation (NSF); National Institutes of Health (NIH)
- Grant/Contract Number:
- AC05-76RL01830; FA9550-16-1-0362; ECC-1542101
- OSTI ID:
- 1815697
- Journal Information:
- Nature Communications, Vol. 11, Issue 1; ISSN 2041-1723
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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