Optomechanical laser cooling with mechanical modulations

Bienert, Marc; Barberis-Blostein, Pablo

doi:10.1103/physreva.91.023818

Cited by 33 publications

(26 citation statements)

References 26 publications

(50 reference statements)

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“…[15,16]). Note that though others have previously studied optomechanical systems subject to mechanical parametric driving [17][18][19][20][21][22], the utility of such an approach in generating optical squeezing and amplification appears to have gone unrecognized.…”

Section: Introductionmentioning

confidence: 99%

Optomechanics with two-phonon driving

2016

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We consider the physics of an optomechanical cavity subject to coherent two-phonon driving, i.e. degenerate parametric amplification of the mechanical mode. We show that in such a system, the cavity mode can effectively "inherit" parametric driving from the mechanics, yielding phase-sensitive amplification and squeezing of optical signals reflected from the cavity. We also demonstrate how such a system can be used to perform single-quadrature detection of a near-resonant narrow-band force applied to the mechanics with extremely low added noise from the optics. The system also exhibits strong differences from a conventional degenerate parametric amplifier: in particular, the cavity spectral function can become negative, indicating a negative effective photon temperature.

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Section: Introductionmentioning

confidence: 99%

Optomechanics with two-phonon driving

2016

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“…In this paper, we propose a proposal to improve micromechanical resonator cooling in OMS via modulating frequencies of both the optical and mechanical components. The FM of optical component is easy to implement and the modulation of micromechanical resonators has also been reported [38][39][40][41][42][43][44]. Here we provide a complete and simple understanding of the physical processes about improving mechanical cooling, which allows us to illustrate the deep reasons of the lower mechanical cooling.…”

Section: Introductionmentioning

confidence: 80%

Optomechanical cooling beyond the quantum backaction limit with frequency modulation

et al. 2018

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In the usual optomechanical cooling, even if the system has no thermal component, it still has a quantum limit-known as the quantum backaction limit (QBL)-on the minimum phonon number related to shot noise. By studying the side-band cooling regime in optomechanical system (OMS), we find that the cooling can be improved significantly when the frequency modulation (FM) that can suppress the Stokes heating processes is introduced into the system. We analyze and demonstrate the reasons of the phonon number below the QBL redefined in the whole stable region of the standard OMSs. The above analyses are further checked by numerically solving the differential equations of second order moments derived from the quantum master equation with broad system parameters, ranging from weak coupling (WC) to ultrastrong coupling (USC) and resolved side-band (RSB) to unresolved side-band (USB) regimes. Comparing with the cases of those without FM, the stable ground-state cooling can also be achieved even in the conventional unstable region.

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“…The second order nonlinear interaction (φẑ 2 ) of Eq. (15) induces an x-squared-type nonlinearity, allowing one to produce mechanical squeezing [32], mechanical amplification [33], mechanical entanglement [34], or cooling through mechanical frequency modulation [35].…”

Section: Quantum Dynamicsmentioning

confidence: 99%

Quantum magnetomechanics: Towards the ultrastrong coupling regime

et al. 2018

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In this paper we investigate a hybrid quantum system comprising a mechanical oscillator coupled via magnetic induced electromotive force to an LC resonator. We derive the Lagrangian and Hamiltonian for this system and find that the interaction can be described by a charge-momentum coupling with a strength that has a strong geometry dependence. We focus our study on a mechanical resonator with a thin-film magnetic coating which interacts with a nanofabricated planar coil. We determine that the coupling rate between these two systems can enter the strong and ultrastrong coupling regimes with experimentally feasible parameters. This magnetomechanical configuration allows for a range of applications including electromechanical state transfer and weak-force sensing.

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Optomechanical laser cooling with mechanical modulations

Cited by 33 publications

References 26 publications

Optomechanics with two-phonon driving

Optomechanics with two-phonon driving

Optomechanical cooling beyond the quantum backaction limit with frequency modulation

Quantum magnetomechanics: Towards the ultrastrong coupling regime

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