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Journal Article

Optoacoustic Cooling of Traveling Hypersound Waves

MPS-Authors
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Blázquez Martínez,  Laura
Stiller Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Department of Physics, Friedrich-Alexander Universität Erlangen-Nürnberg;

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Zhu,  Changlong
Stiller Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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Geilen,  Andreas
International Max Planck Research School, Max Planck Institute for the Science of Light, Max Planck Society;
Stiller Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Department of Physics, Friedrich-Alexander Universität Erlangen-Nürnberg;

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Stiller,  Birgit
Stiller Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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PhysRevLett.132.023603.pdf
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Citation

Blázquez Martínez, L., Wiedemann, P., Zhu, C., Geilen, A., & Stiller, B. (2024). Optoacoustic Cooling of Traveling Hypersound Waves. Physical Review Letters, 132: 023603. doi:10.1103/PhysRevLett.132.023603.


Cite as: https://hdl.handle.net/21.11116/0000-000E-4361-9
Abstract
We experimentally demonstrate optoacoustic cooling via stimulated Brillouin-Mandelstam scattering in a 50 cm long tapered photonic crystal fiber. For a 7.38 GHz acoustic mode, a cooling rate of 219 K from room temperature has been achieved. As anti-Stokes and Stokes Brillouin processes naturally break the symmetry of phonon cooling and heating, resolved sideband schemes are not necessary. The experiments pave the way to explore the classical to quantum transition for macroscopic objects and could enable new quantum technologies in terms of storage and repeater schemes.