Quadrature squeezing of a higher-order sideband spectrum in cavity optomechanics

Liu, Shaopeng; Yang, Wen-Xing; Zhu, Zhonghu; Shui, Tao; Li, Ling

doi:10.1364/ol.43.000009

Cited by 48 publications

(20 citation statements)

References 31 publications

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“…Under the condition of the mean-field approximation, the expectation values of these noise operators are assumed as â in (t) = 0, b in (t) = 0 and F th (t) = 0 [22]. Subsequently, it is necessary to extract the linear and nonlinear output spectra from the above Heisenberg-Langevin equations by employing the sideband-resolved limit (i.e., ω m κ a,b ) and the perturbation method [15], [19]. All of the operators can be expressed as the perturbation…”

Section: Theoretical Model and Basic Equations In The Double-cavity Omentioning

confidence: 99%

“…To evaluate the conversion efficiency of the upper OSS, a dimensionless quantity used in Refs. [15], [19] is given as…”

Section: Theoretical Model and Basic Equations In The Double-cavity Omentioning

confidence: 99%

“…As one of the centerpieces of modern optics, OMIT induced by destructive interference is characterised by a transparency window at the resonance position of a probe transmission spectrum. Such an OMIT effect has versatile performance for the management of optomechanical dynamics and interactions [18], such as the ultraslow group velocity of light pulses inside a lossless transparency window [11], optomechanically induced nonreciprocal transparency and amplification [13], [14] and the generation of higher-order sidebands [15], [19].…”

Section: Introductionmentioning

confidence: 99%

“…evolves into the full Heisenberg-Langevin equation,∂ tâ (t) = 1 ih [â(t),Ĥ 0 ] − 2κ aâ (t) + 2Ŝ in (t). (21)Based on the above method for calculating the Heisenberg-Langevin equation, we substitute the formal solutionr(t, ω) of Eq (19). into Eq.…”

mentioning

confidence: 99%

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Enhancement of Upper Second-Order Sidebands Based on Optomechanically Induced Absorption in a Double-Cavity Optomechanical System

et al. 2021

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We propose an effective scheme to enhance the efficiency of optical second-order sideband (OSS) via optomechanically induced absorption(OMIA) in a double-cavity optomechanical system. In this double-cavity optomechanical configuration, the optomechanical cavity is driven by a strong control field and a weak probe pulse, while the assisted cavity is excited by another strong control field. Using experimentally achievable parameters, we identify that the present optomechanical system can create the OMIA effect and improve the efficiency of the upper OSS beyond that is achieved by employing optomechanically induced transparency (OMIT). With the aid of OMIA, we also report that the maximum efficiency and linewidth of the upper OSS peak can be modulated by the double-cavity coupling strength and the detuning of the driving field. The present proposal offers a new path to optimize optical nonlinearity and design chip-scale signal processing.

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Section: Theoretical Model and Basic Equations In The Double-cavity Omentioning

confidence: 99%

“…To evaluate the conversion efficiency of the upper OSS, a dimensionless quantity used in Refs. [15], [19] is given as…”

Section: Theoretical Model and Basic Equations In The Double-cavity Omentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Enhancement of Upper Second-Order Sidebands Based on Optomechanically Induced Absorption in a Double-Cavity Optomechanical System

et al. 2021

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“…The total Hamiltonian of the system in the rotating frame at the frequency ω 1 can be written as the following form [20,22,47]:…”

Section: Theoretical Model and Derivation Of Highorder Sidebandsmentioning

confidence: 99%

Tunable optical second-order sideband effects in a parity-time symmetric optomechanical system

Xing

Liao

Zhou

et al. 2020

Sci. China Phys. Mech. Astron.

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We theoretically investigate the optical second-order sideband generation (OSSG) in an optical parity-time (PT) symmetric system, which consists of a passive cavity trapping the atomic ensemble and an active cavity. Compared with the double-passive system, it is found that near the exceptional point (EP), the efficiency of the OSSG increases sharply not only for the blue probepump detuning resonant case but also for the red one. Using experimentally achievable parameters, we study the effect of the atomic ensemble on the efficiency of the OSSG in the PT-symmetric system. The numerical results show that the efficiency of the OSSG is 30% higher than that of the first-order sideband, which is realized easily by simultaneously modulating the atom-cavity coupling strength and detuning. Moreover, the efficiency of the OSSG can also be tuned effectively by the pump power, and the efficiency is robust when the pump power is strong enough. This study may have some guidance for modulating the nonlinear optical properties and controlling light propagation, which may stimulate further applications in optical communications. second-order sideband effects, parity-time symmetry, optomechanical system

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A Lossless Sink Based on Complex Frequency Excitations

Rasmussen,

Rosa,

Lewton

et al. 2023

Advanced Science

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The creation of a sink in a lossless wave‐bearing medium is achieved using complex frequency signals—harmonic excitations that exponentially grow in time. The wave sink, where incident waves are confined to a point, has attracted interest for imaging and sensing since it may lead to arbitrarily small hotspots that surpass the diffraction limit. However, most methods of creating sinks require careful tuning, such as by impedance matching the sink to free space through the inclusion of loss, which imposes constraints on emerging applications. An alternative method, proposed here, relies on complex frequency excitations, bypassing the need to modify the scattering system by instead shaping the input signal. Eigenvalue zeros derived from a scattering formalism extended to the complex frequency plane reveal operating conditions that induce complete energy trapping under steady‐state conditions in a framework generally applicable to 2D and 3D media. To support the developed theory, an experiment is performed where a sink is realized using elastic waves on a plate with a circular cutout. These findings may lead to imaging and sensing applications relying on subwavelength focal points and nonlinear wave generation due to the high amplitudes achieved over short timescales.

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Quadrature squeezing of a higher-order sideband spectrum in cavity optomechanics

Cited by 48 publications

References 31 publications

Enhancement of Upper Second-Order Sidebands Based on Optomechanically Induced Absorption in a Double-Cavity Optomechanical System

Enhancement of Upper Second-Order Sidebands Based on Optomechanically Induced Absorption in a Double-Cavity Optomechanical System

Tunable optical second-order sideband effects in a parity-time symmetric optomechanical system

A Lossless Sink Based on Complex Frequency Excitations

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