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Updated: Jan 29, 2026

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
Published on: June 28, 2016
Low-power phonon lasing through position-modulated Kerr-type nonlinearity
P Djorwe1, Y Pennec2, B Djafari-Rouhani2
1Institut d'Electronique, de Microélectronique et Nanotechnologie, UMR CNRS 8520 Université de Lille, Sciences et technologies, Villeneuve d' Ascq, 59652, France. philippe.djorwe@univ-lille1.fr.
Abstract:
We demonstrate low-power amplification process in cavity optomechanics (COM). This operation is based on the nonlinear position-modulated self-Kerr interaction. Owing to this nonlinear term, the effective coupling highly scales with the photon number, resulting in a giant enhancement of the cooperativity. Even for small nonlinearity, the system reaches the amplification threshold for weak driving strength, leading to low-power phonon lasing. This amplifier can be phase-preserving and provides a practical advantage related to the power consumption issues. This work opens up new avenues to perform low-power and efficient amplifiers in optomechanics and related fields.
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