Realization of a highly sensitive mass sensor in a quadratically coupled optomechanical system

Liu, Shaopeng; Liu, Bo; Wang, Junfeng; Sun, Tingting; Yang, Wen-Xing

doi:10.1103/physreva.99.033822

Cited by 44 publications

(21 citation statements)

References 66 publications

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“…Cavity optomechanics [1], exploring the interaction between light and mechanical systems, has made a profound impact in recent years due to its wide variety of applications including optomechanical sensors. Optomechanical sensors have achieved ultrasensitive performance in gravitational wave detection [2,3], high-precision measurements [4], detection for mass [5], acceleration [6], displacement [7], and force [8][9][10][11]. For practical applications, the optomechanical system is unavoidably coupled with its surroundings, leading to a non-Hermitian optomechanical system.…”

Section: Introductionmentioning

confidence: 99%

Detecting deformed commutators with exceptional points in optomechanical sensors

Cui

2021

New J. Phys.

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Models of quantum gravity imply a modification of the canonical position-momentum commutation relations. In this manuscript, working with a binary mechanical system, we examine the effect of quantum gravity on the exceptional points of the system. On the one side, we find that the exceedingly weak effect of quantum gravity can be sensed via pushing the system towards a second-order exceptional point, where the spectra of the non-Hermitian system exhibits non-analytic and even discontinuous behavior. On the other side, the gravity perturbation will affect the sensitivity of the system to deposition mass. In order to further enhance the sensitivity of the system to quantum gravity, we extend the system to the other one which has a third-order exceptional point. Our work provides a feasible way to use exceptional points as a new tool to explore the effect of quantum gravity.

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Section: Introductionmentioning

confidence: 99%

Detecting deformed commutators with exceptional points in optomechanical sensors

Cui

2021

New J. Phys.

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“…It has been shown that the second-order upper sideband generation in the output field is much weaker than the input probe field [28]. The enhancement of the second-order upper sideband generation has potential applications in precise measurements of electrical charges [29] and the effective mass of the mechanical resonator [30]. It has been shown that the enhancement of the second-order upper sideband generation in the optomechanical system can be achieved by using Coulomb-interaction [29], a degenerate parametric amplifier [30], a nonlinear Kerr medium [31], and two-level atoms [32].…”

Section: Introductionmentioning

confidence: 99%

The Optomechanical Response of a Cubic Anharmonic Oscillator

2020

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The nonlinearity of a mechanical oscillator may lead to the generation of the macroscopic quantum states, which are useful for precision measurement. Measuring the nonlinearity of a mechanical oscillator becomes important in order to effectively assess its performance. In this paper, we study the electromagnetically induced transparency (EIT) in an optomechanical system with a cubic nonlinear movable mirror. In the presence of the nonlinearity of the movable mirror, we show that the intensity of the output probe field exhibits an asymmetric shape with the transparency peak shifted to a frequency lower than the cavity resonance frequency. This shift can be used to measure the nonlinearity strength of the movable mirror. We also show that the mechanical nonlinearity gives rise to the enhancement of the intensity of the second-order upper sideband generation.

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“…However, several interesting studies pay close attention to the quadratic optomechanical coupling. [22][23][24][25][26][27][28][29][30] For example, Thompson et al [22] explained location of the mechanical membrane had a significant effect on the cavity frequency. Specifically, when the mechanical membrane was located at a node (or antinode) of the cavity field, extrema of the cavity frequency appeared.…”

Section: Introductionmentioning

confidence: 99%

Transparency, Stokes, and Anti‐Stokes Processes in a Multimode Quadratic Coupling System with Parametric Amplifier

Badshah

et al. 2021

Annalen der Physik

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A study on optomechanically induced transparency (OMIT) and the output power at the Stokes (anti‐Stokes) frequency in a hybrid optomechanical system is presented. The system consists of a Fabry–Pérot cavity, two non‐absorbing membranes, and a degenerate optical parametric amplifier (OPA), where the coupling interaction between the cavity and each membrane is quadratic. This study shows that spacing between two transparency window dips in a wider detuning range and the higher transparency efficiency can be achieved by selecting the suitable strength of the quadratic coupling. In addition, it is also found that frequencies of the two mechanical membranes, the nonlinear gain of the OPA, and phase of the field driving OPA can exert a striking influence on the output power at the Stokes (anti‐Stokes) frequency. Specifically, with the increase of the nonlinear parameter of OPA, spacing between two dips on the normalized output power at the Stokes frequency becomes much wider for two membranes with the same frequency. Three peaks on the normalized output power at the anti‐Stokes frequency appear in a larger detuning. In quantum engineering, this scheme may have potential applications in enhancing the performance of OMIT devices.

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Realization of a highly sensitive mass sensor in a quadratically coupled optomechanical system

Cited by 44 publications

References 66 publications

Detecting deformed commutators with exceptional points in optomechanical sensors

Detecting deformed commutators with exceptional points in optomechanical sensors

The Optomechanical Response of a Cubic Anharmonic Oscillator

Transparency, Stokes, and Anti‐Stokes Processes in a Multimode Quadratic Coupling System with Parametric Amplifier

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