2024
DOI: 10.1103/physrevlett.132.023603
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Optoacoustic Cooling of Traveling Hypersound Waves

Laura Blázquez Martínez,
Philipp Wiedemann,
Changlong Zhu
et al.

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 qu… Show more

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Cited by 5 publications
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