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Article Dans Une Revue Scientific Reports Année : 2019

Low-power phonon lasing through position-modulated Kerr-type nonlinearity

Résumé

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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hal-03146998 , version 1 (19-02-2021)

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P. Djorwe, Yan Pennec, Bahram Djafari-Rouhani. Low-power phonon lasing through position-modulated Kerr-type nonlinearity. Scientific Reports, 2019, 9 (1), pp.1684. ⟨10.1038/s41598-019-38578-8⟩. ⟨hal-03146998⟩
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