Brillouin phonon cooling by electro-optic feedback
Kien Phan Huy, Adrien Godet, Thibaut Sylvestre, and Jean-Charles, Beugnot
TL;DR
This paper proposes a theoretical method to cool propagating phonons via Brillouin scattering combined with electro-optic feedback, demonstrating control over phonon linewidth and resonance effects.
Contribution
It introduces a novel approach combining Brillouin scattering and electro-optic feedback for phonon cooling and linewidth control.
Findings
Short delays feedback effectively controls Brillouin linewidth
Long delays induce Fano-like resonances
Theoretical analysis of phonon cooling mechanisms
Abstract
We theoretically investigate the cooling of a propagating phonon through Brillouin scattering. To that end, we propose to introduce an external viscous force using Brillouin scattering and an electro-optic feedback. Short delays feedback show an efficient control of the Brillouin linewidth whereas long delays can induce Fano-like resonances.
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Taxonomy
TopicsMechanical and Optical Resonators · Advanced Thermodynamics and Statistical Mechanics · Optical properties and cooling technologies in crystalline materials